MP Board 10th Model Papers 2019-20 English Hindi Medium | MP Board 10th Sample Papers

MP Board 10th Model Papers 2019-20: Students who are searching for last year’s question papers of (MPBSE) Madhya Pradesh Board Class 10 can get all you required MP Board 10th Model Question Papers 2019-2020 in English Medium and Hindi Medium Pdf Free Download, MP Board 10th Sample Papers, Previous Year Question Papers, Last 5 Years Question Papers of 10th MP Board from this page. Yes, what you heard is right so not to worry about your exam preparation schedule, you will definitely complete your preparation within your planned time by using these MP Board Model Papers Class 10th 2019-2020 in Hindi English Medium.

Last 5 Years Question Papers of 10th MP Board | MP Board 10th Sample Papers

Candidates can happily make use of these MPBSE MP Board 10th Sample Papers for exam preparation to score good marks in all subjects like Maths, Science, Social Science, English, Hindi (Special and General). These subject wise Last 5 Years Question Papers of 10th MP Board are formatted in PDF files for easy download access.

MP Board 10th Model Papers 2020 | MP Board SSLC 10th Sample Papers Download
Board Name Madhya Pradesh Board of School Education
Class Name SSLC/ 10th Class
Name of Exam Public Exams
Category Board Exam Question Papers
Location Madhya Pradesh
Official Site mpbse.nic.in

Subject-wise MP Board 10th Class Question Papers Download Links:

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MP Board Class 10th Solutions

MP Board Class 10th Books Solutions Guide Pdf download all subjects in both Hindi Medium and English Medium are part of MP Board Solutions. Here we have given NCERT Madhya Pradesh Syllabus MP Board Class 10 Text Book Solutions Pdf.

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

MP Board Class 10th Books Solutions

MP Board Class 10th Solutions
MP Board Class 10th Solutions

We hope the given MP Board Class 10th Books Solutions Guide Pdf download all subjects in both Hindi Medium and English Medium will help you. If you have any queries regarding NCERT Madhya Pradesh Syllabus MP Board Class 10 Text Book Solutions Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Sanskrit Book Solutions दूर्वा

MP Board Class 10th Sanskrit Solutions Guide Pdf Free Download संस्कृत दूर्वा are part of MP Board Class 10th Solutions. Here we have given Madhya Pradesh Syllabus MP Board Durva Sanskrit Book Class 10 Solutions Pdf.

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

MP Board Class 10 Science Solutions

MP Board Class 10th Sanskrit Book Solutions Durva

Durva Sanskrit Book Class 10 Solutions

MP Board Class 10th Sanskrit व्याकरणखण्डः

MP Board Class 10th Sanskrit Syllabus

‘क’ खण्डः (अपठितअवबोधनम्)
(सरल-गद्यांश-आधारितं कार्य-गद्यांशद्वयम्)

1. 40-50 शब्दपरिमितः गद्यांशः (एकसरलगद्यांशः)

  • एकपदेन पूर्णवाक्येन च प्रश्नोत्तारिण।
  • भाषिक-कार्यम्।

2. 80-130 शब्दपरिमितः गद्यांशः (एकसरलगद्यांशः) (सरलकथा-घटनावर्णनं वा)

  • एकपदेन पूर्णवाक्येन च प्रश्नोत्तराणि।
  • समुचितशीर्षकप्रदानम्।
  • व्युत्क्रमेण कथालेखनमपि।

भाषिक-कार्यम्

  • वाक्ये क्रियापदचयनम्।
  • विशेषण-विशेष्य-अन्टितिः।
  • अनुच्छेदे प्रदत्तानां पर्याय-विलोमपदचयनम्।
  • विशेषाः विशेष्य, कर्ता-क्रिया, अन्विति, पर्यायवाचिनः विलोमशब्दाः संज्ञास्थाने, सर्वनाम-प्रयोगः।
  • कर्तृक्रिया अन्वितिः।
  • संज्ञास्थाने सर्वनामप्रयोग अथवा सर्वनामस्थाने संज्ञाप्रयोगः।

‘ख’ खण्डः (अनुप्रयुक्तव्याकरणम्)
(प्रस्तावितपाठ्यपुस्तकाधारितम्)

  1. सङ्केताधारितम् आनौपचारिकपत्रम्।
  2. सङ्केताधारितं संवादलेखनम्।
  3. चित्राधारितं वर्णनम्।

‘ग’ खण्डः (अनुप्रयुक्तव्याकरणम्)
(प्रस्तावितपाठ्यपुस्तकाधारितम्)

1. संधिकार्यम

  • स्वरसन्धिः – दीर्घः, गुणः, वृद्धिः, यण, अयादि, पूर्वरूपम्।
  • व्यञ्जनसन्धिः – परसवर्णः, छत्वः, तुक्, आगमः, अनुस्वरः, वर्गीयप्रथमाक्षराणां तृतीयवणे परिवर्तनम्, प्रथमवर्णस्य पञ्चं वर्णे परिवर्तनम्।
  • विसर्गसन्धिः – विसर्गस्य उत्वं. रत्वं, लोपः विसर्गस्थाने स, श।

2. समास: (वाक्येषु समस्तपदानां विग्रहः विग्रहपदानां च समासः)

  • तत्पुरुषः (विभक्तिः नन्, उपपदः)।
  • कर्मधारयः (विशेषणम्-विशेष्यम्, उपमान-उपमेयम्)।
  • द्विग:
  • द्वन्द्वः (इतरेतर, समाहारः एकशेषः)।
  • बहुव्रीहिः (समानाधिकरणम्)
  • अव्ययीभावः (अनु, उप, स, निर, प्रति, यथा।)

3. कारकाणां प्रयोगः (सोदाहरणम्)।

4. प्रत्ययाः अधोलिखितप्रत्यययोगैः वाक्यसंयोजनं रिक्तस्थानपूर्तिः।

  • कृदन्ताः – तव्यत्, अनीयर्, शतृ, शानच्, क्त, क्तवतु, क्त्वा, ल्यप्, तुमुन्, क्तिन्।
  • तद्धिता – मतुप, इन्, ठक्, त्व, त्रल्।
  • स्त्रीप्रत्ययाः – टाप, डीए, ङीप्, ङीन्।

5. अन्यपदानि (कथयाम् अनुच्छेदे संवादे वा अव्यानां प्रयोगः)।
अपि, इस, मा, इतस्ततः, यत्-तत्, अत्र-तत्र-तत्र, यदा-कदा, यथा-तथा, यावत्-तावत्, शनै।

6. घाटिका-चित्र- अङ्गानां स्थाने समयनेखम् (सामान्य, संपाद, मार्थ, पादोन)

7. सङ्ख्या एकतः पञ्चपर्यन्तं वाक्यप्रयोगः, एकतः शत्पर्यन्तम् सङ्ख्याज्ञानम्।

8. वचन-लिङ्ग-पुरुष-लकार-दृष्टया संशोधनम्।

9. उपपदविभक्तिनां प्रयोगः।

  • द्वितीय: अभितः, परितः, उभयतः, समया, निकषा, प्रति, धिक्, विना।
  • तृतीया: विना, अलम्, सह, हीनः।
  • चतुर्थी: नमः, स्वस्ति, स्वाहा, स्वधा, अलम्, रुच, दा, क्रुध, स्पृह, असूय।

10. प्रादयः द्वाविंशतिः उपसर्गाः।

11. शब्दरूपाणि

  • अजन्त: राम, रमा, कवि, साधु, पितृ।
  • हलन्त: नामन्, भवत्, राजन्।
  • सर्वनाम: अस्मद्, युष्मद्, तत्, एतत्, किम्, लिङ्ग त्रये।

12. धातुरूपाणि

  • पञ्चलकाराः लट्, लोट्, लङ्, विधिलिङ्, लुट च।
  • भ्वादिगणीयः (प्रथमगणः) धातवः।
  • परस्मैपदी-भू (भव), गम् (गच्छ्), दृश् (पश्य), पच्, पा (पिब्)।
  • आत्मनेपदी-लभ, सेव्, वृध, वृत्।
  • उभयपदी-नी, ह, याच्।

‘घ’ खण्डः (पठितअवबोधनम्)

1. पठित-सामग्रीम् आधृत्य अवबोधनकार्यम्

  • गद्यांशः
  • पद्यांशः
  • नाट्यांशः
  • प्रति-अंशम् आधारितम् अवबोधनकार्यम् (एकपदेन पूर्णवाक्येन च प्रश्नोत्तराणि, रिवतस्थानपूर्तिः)।
  • भाषिक-कार्यम्।
    (अ) वाक्ये क्रियापदचयनम्।
    (ब) कर्तृक्रिया-अन्वितिः
    (स) विशेषण-विशेष्य-अन्वितिः।
    (द) संज्ञास्थाने सर्वनाम-प्रयोगः अथवा सर्वनाम स्थाने संज्ञाप्रयोगः।
    (ङ) अनुच्छेदे प्रदत्तानां पर्याय-विलोम-पदचयनम्।

2. भावावबोधनम् (अंशद्वयम्)
(रिक्तस्थानपूर्ति द्वारा, विकल्पचयनेन, शुद्ध-अशुद्धमाध्येन, सूक्तिमाध्यमे च)।
3. अन्वये रिक्तस्थानपूर्तिः।
4. प्रश्ननिर्माणम्
5. क्रमरहित कथाक्रमसंयोजनं कथापूर्तिः वा।
6. सन्दर्भशब्दानां प्रयोगः शब्दार्थ-मेलनम् च (उत्तराणि केवलं संस्कतेन लेखितव्यानि)।

उद्देश्यः अंक कालखण्डाः
ज्ञानम् 35 65
अवबोधः 50 90
अनुप्रयोगकौशलञ्च 15 25
योगः 100 170

We hope the given MP Board Class 10th Sanskrit Solutions Guide Pdf Free Download संस्कृत दूर्वा will help you. If you have any query regarding Madhya Pradesh Syllabus MP Board Class 10th Sanskrit Book Solutions Durva Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Hindi Book Solutions वासंती, नवनीत

MP Board Class 10th Hindi Solutions Guide Pdf Free Download of हिंदी वासंती, नवनीत are part of MP Board Class 10th Solutions. Here we have given Madhya Pradesh Syllabus MP Board Class 10 Hindi Book Solutions Vasanti, Navneet Pdf Special and General.

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

mp board class 10th maths solution

MP Board Class 10th Hindi Book Solutions Vasanti

Here we have given MP Board Class 10 General Hindi Vasanti Solutions Hindi Samanya Kaksha 10 (वासंती हिंदी सामान्य कक्षा 10).

Vasanti Hindi Book Class 10 Solutions

MP Board Class 10 General Hindi व्याकरण

MP Board Class 10th Hindi Book Solutions Navneet

Here we have given MP Board Class 10 Special Hindi Navneet Solutions Hindi Vishisht Kaksha 10 (नवनीत हिंदी विशिष्ट कक्षा 10).

Navneet Hindi Book Class 10 Solutions

पद्य खण्ड

गद्य खण्ड

MP Board Class 10 Special Hindi सहायक वाचन Solutions

MP Board Class 10 Special Hindi व्याकरण

MP Board Class 10 General Hindi Syllabus & Marking Scheme

समय : 3 घण्टे
पूर्णांक : 100

क्रम विषय सामग्री अंक कालखण्ड
1. पद्य खण्ड-
एक पद्यांश की व्याख्या
सौंदर्य-बोध पर आधारित प्रश्न
विषय-वस्तु पर आधारित प्रश्न
25 40
2. गद्य खण्ड-
अर्थ ग्रहण संबंधी प्रश्न
विषय-वस्तु पर आधारित बोध प्रश्न
25 40
3. गद्य की विद्याएँ
प्रमुख विधाओं का सामान्य परिचय
05 10
4. व्याकरण-
संधि-भेद
समास-भेद
तत्सम, तद्भव, देशज एवं आगत शब्द
पर्यायवाची शब्द
वाक्य के प्रकार-रचना, अर्थ के आधार पर
वाक्य शुद्ध करना
विराम चिह्न
मुहावरे लोकोक्तियाँ
20 30
5. अपठित बोध-
गद्यांश, पद्यांश-शीर्षक सारांश एवं प्रश्न
10 15
6. पत्र लेखन 05 10
7. निबंध लेखन 10 15
पुनरावृत्ति 20
योग 100 180

पाठ्य पुस्तक-वासंती (गद्य-पद्य संकलन)

पद्य खण्ड (25 Marks)

  • पद्य पाठों पर आधारित एक पद्यांश की सप्रसंग व्याख्या (5 Marks)
    (कविता का नाम, कवि का नाम, अर्थ)
  • काव्य-सौंदर्य पर आधारित प्रश्न (10 Marks)
  • विषय-वस्तु पर आधारित बोध-प्रश्न (10 Marks)

गद्य खण्ड (25 Marks)

  • गद्य पाठों पर आधारित अर्थग्रहण संबंधी प्रश्न (10 Marks)
  • विषय-वस्तु पर आधारित प्रश्न (15 Marks)

गद्य की विधाएँ (5 Marks)

  • प्रमुख विधाओं के सामान्य परिचय पर प्रश्न (5 Marks)

भाषा-बोध (20 Marks)

  • संधि-भेद, परिभाषा, उदाहरण आदि पर प्रश्न (2 Marks)
  • समास-भेद, परिभाषा, उदाहरण आदि पर प्रश्न (2 Marks)
  • तत्सम, तद्भव, देशज तथा आगत शब्द पर प्रश्न (2 Marks)
  • पर्यायवाची शब्द पर प्रश्न (2 Marks)
  • विलोम शब्द पर प्रश्न (2 Marks)
  • वाक्यांशों के लिए एक शब्द पर प्रश्न (2 Marks)
  • वाक्य के प्रकार (रचना और अर्थ के आधार पर) प्रश्न (2 Marks)
  • विराम चिह्न पर प्रश्न (2 Marks)
  • वाक्य शुद्ध करना पर प्रश्न (2 Marks)
  • मुहावरे/लोकोक्तियाँ पर प्रश्न (2 Marks)

अपठित बोध (10 Marks)

  • गद्यांश-शीर्षक, सारांश/प्रश्न (5 Marks)
  • पद्यांश-शीर्षक, सारांश प्रश्न (5 Marks)

पत्र लेखन (5 Marks)

  • अनौपचारिक पत्र, औपचारिक पत्र, निमंत्रण पत्र, पारिवारिक पत्र (5 Marks)

निबंध लेखन (10 Marks)

  • वर्णनात्मक विचारात्मक एवं समसामयिक विषयों पर निबंध लेखन (10 Marks)

प्रायोजना कार्य-

  1. क्षेत्रीय बोली-पहेलियाँ, चुटकुले, लोक गीत, लोक कथाओं का परिचय तथा खड़ी बोली में उनका अनुवाद।
  2. दूरदर्शन/आकाशवाणी के कार्यक्रम पर प्रतिक्रियाएँ/विश्लेषण।
  3. हिन्दी साहित्य का स्वतन्त्र पठन/टिप्पणी एवं प्रेरणाएँ।
  4. हस्तलिखित पत्रिका तैयार करना।
  5. म.प्र. से प्रकाशित होने वाली हिन्दी भाषा की पत्र-पत्रिकाओं की जानकारी।

टिप्पणी-
प्रायोजना कार्य से संबंधित विषय-वस्तु पर (अंक आवंटित न होने के कारण) परीक्षा में प्रश्न पूछे जाना अपेक्षित नहीं है।
निर्धारित पाठय-पुस्तक-वासंती (गद्य-पद्य संकलन)
मध्यप्रदेश राज्य शिक्षा केंद्र द्वारा संकलित एवं निर्मित तथा मध्यप्रदेश पाठ्यपुस्तक निगम द्वारा प्रकाशित।

MP Board Class 10 Special Hindi Syllabus & Marking Scheme

समय : 3 घण्टा
पूर्णांक : 100

क्रम विषय सामग्री अंक कालखण्ड
1. पद्य खण्ड –
पद्य साहित्य का विकास
कवि परिचय, व्याख्या, सौन्दर्य बोध एवं भाव तथा विषय-वस्तु पर आधारित प्रश्न
4 + 23 = 27 40
2. गद्य खण्ड –
गद्य की विधाएँ
लेखक परिचय, व्याख्या, विषय-वस्तु एवं विचार बोध पर प्रश्न
4 + 19 = 23 35
3. सहायक वाचन –
विविध पाठों पर आधारित प्रश्न
आंचलिक भाषा के पाठों में से प्रश्न
6 + 4 = 10 15
4. भाषा बोध –
सन्धि, समास-भेद सहित
वाक्य के प्रकार (अर्थ के आधार पर), वाक्य परिवर्तन
अनेक शब्दों के लिए एक शब्द
10 15
5. काव्य बोध –
काव्य की परिभाषा
भेद-मुक्तक काव्य, प्रबन्ध काव्य (महाकाव्य, खण्डकाव्य)
रस-परिभाषा, अंग, भेद, उदाहरण
अलंकार-वक्रोक्ति, अतिश्योक्ति, अन्योक्ति
छन्द-गीतिका, हरिगीतिका, उल्लाला, रोला
10 15
6. अपठित बोध 05 10
7. पत्र-लेखन 05 10
8. निबंध-लेखन 10 20
पुनरावृत्ति 20
सम्पूर्ण योग (पूर्णांक) 100 180

पाठ्य पुस्तक-नवनीत

पद्य खण्ड (27 Marks)

  • पद्य साहित्य का विकास-रीतिकाल तथा आधुनिक
    काल का सामान्य परिचय पर दो प्रश्न (2 + 2 = 4 Marks)
  • पद्य पाठों पर आधारित कवि का संक्षिप्त परिचय-रचनाएँ, काव्यगत विशेषताओं पर एक प्रश्न (5 Marks)
  • दो पद्यांश में से एक की सप्रसंग व्याख्या पर एक प्रश्न (5 Marks)
  • सौन्दर्य बोध पर आधारित दो प्रश्न (4 + 3 = 7 Marks)
  • भाव एवं विषय-वस्तुं पर आधारित दो प्रश्न (3 + 3 = 6 Marks)

गद्य खण्ड (23 Marks)

  • गद्य की विधाओं के विकास क्रम पर आधारित एक प्रश्न (4 Marks)
  • लेखक का संक्षिप्त परिचय, (रचनाएँ, भाषा-शैली) पर एक प्रश्न (5 Marks)
  • दो गद्यांश में से एक की सप्रसंग व्याख्या पर एक प्रश्न (5 Marks)
  • विचार बोध पर आधारित दो प्रश्न (3 + 2 = 5 Marks)
  • विषय बोध पर आधारित एक प्रश्न (4 Marks)

सहायक वाचन (10 Marks)

  • पाठों की विषय-वस्तु पर आधारित दो प्रश्न (3 + 3 = 6 Marks)
  • आंचलिक भाषा के पाठों पर आधारित दो प्रश्न (2 + 2 = 4 Marks)

भाषा बोध (10 Marks)

  • सन्धि भेद पर एक प्रश्न (2 Marks)
  • समास भेद पर एक प्रश्न (2 Marks)
  • वाक्य के प्रकार (अर्थ के आधार पर) पर एक प्रश्न (2 Marks)
  • वाक्य परिवर्तन पर एक प्रश्न (2 Marks)
  • अनेक शब्दों के लिए एक शब्द पर एक प्रश्न (2 Marks)

काव्य बोध (10 Marks)

  • काव्य की परिभाषा-भेद, मुक्तक काव्य, प्रबन्ध काव्य (महाकाव्य, खण्डकाव्य) पर एक प्रश्न (4 Marks)
  • रस-परिभाषा, अंग, भेद और उदाहरण पर एक प्रश्न (2 Marks)
  • अलंकार-वक्रोक्ति, अतिश्योक्ति, अन्योक्ति पर एक प्रश्न (2 Marks)
  • छन्द-गीतिका, हरिगीतिका, उल्लाला, रोला पर एक प्रश्न (2 Marks)

अपठित बोध (5 Marks)

  • गद्यांश/पद्यांश पर एक प्रश्न
  • शीर्षक, सारांश/प्रश्न पर एक प्रश्न

पत्र-लेखन (5 Marks)

  • पारिवारिक, विद्यालयीन एवं कार्यालयीन पत्र पर एक प्रश्न

निबन्ध-लेखन (10 Marks)

  • वर्णनात्मक, विचारात्मक, सामाजिक, सांस्कृतिक, ऐतिहासिक, वैज्ञानिक एवं समसामयिक विषयों पर निबन्ध-लेखन पर एक प्रश्न

प्रायोजना कार्य

  1. क्षेत्रीय बोली—पहेलियाँ, चुटकुले, लोकगीत, लोक कथाओं का परिचय तथा खड़ी बोली में उनका अनुवाद।
  2. दूरदर्शन/आकाशवाणी के कार्यक्रम पर प्रतिक्रियाएँ/विश्लेषण।
  3. हिन्दी साहित्य का स्वतन्त्र पठन/टिप्पणी एवं प्रेरणाएँ।
  4. हस्तलिखित पत्रिका तैयार करना।
  5. म. प्र. से प्रकाशित होने वाले हिन्दी भाषा के पत्र-पत्रिकाओं की जानकारी।

टिप्पणी- प्रायोजना कार्य से सम्बन्धित विषय-वस्तु पर (अंक आबण्टित न होने के कारण) परीक्षा में प्रश्न पूछे जाना अपेक्षित नहीं है।

MP Board Class 10 General Hindi Blue Print of Question Paper

You can download MP Board Class 10th Hindi Blueprint and Marking Scheme 2019-2020 in Hindi and English medium.

MP Board Class 10 Hindi Blue Print of Question Paper 1

MP Board Class 10 Special Hindi Blue Print of Question Paper

MP Board Class 10 Hindi Blue Print of Question Paper 2

We hope the given MP Board Class 10th Hindi Solutions Guide Pdf Free Download of हिंदी वासंती, नवनीत will help you. If you have any query regarding Madhya Pradesh Syllabus MP Board Class 10 Hindi Book Solutions Vasanti, Navneet Pdf Special and General, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Social Science Book Solutions सामाजिक विज्ञान in Hindi & English Medium

MP Board Class 10th Social Science Solutions Guide Pdf Free Download सामाजिक विज्ञान in both Hindi Medium and English Medium are part of MP Board Class 10th Solutions. Here we have given Madhya Pradesh Syllabus MP Board Class 10 Social Science Book Solutions Samajik Vigyan Pdf, Important questions for class 10 social science MP Board.

MP Board 10th Maths Solution

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

MP Board Class 10th Social Science Book Solutions in Hindi Medium

सामाजिक विज्ञान कक्षा 10 MP Board 2020 Book Solutions in Hindi Medium

MP Board 10th Class Social Science Book Solutions Geography भूगोल

Social Science Class 10 MP Board Solutions History इतिहास

MP Board Social Science Book Class 10 Civics नागरिकशास्त्र

MP Board Class 10 Social Science Book Solution Economics अर्थशास्त्र

MP Board Class 10th Social Science Book Solutions in English Medium

MP Board 10th Class Social Science Book Geography Solutions

Social Science Class 10 MP Board History Solutions

Class 10 Social Science MP Board Civics Solutions

MP Board Social Science Book Class 10 Solutions Economics Solutions

MP Board Class 10th Social Science Syllabus

इकाई 1: भारत में संसाधन : प्रकार (10 Marks)
प्राकृतिक संसाधन-मृदा, बनावट, प्रकार, वितरण और संरक्षण।
वन एवं वन्य प्राणी-वनों के प्रकार एवं उपयोगिता, वनस्पति, वन्य प्राणी एवं उनकी सुरक्षा, समाप्त हो रहे वन्य प्राणी।
कृषि-मुख्य फसलें, कृषि का राष्ट्रीय अर्थव्यवस्था में योगदान, औषधीय उद्यान विधि, उसकी उपयोगिता एवं सुरक्षा।
जल संसाधन-प्रकार, स्रोत, वितरण एवं उपयोगिता एवं जल सुरक्षा।
खनिज संसाधन-प्रकार, वितरण, उपयोग, संरक्षा एवं आर्थिक महत्व।
शक्ति के साधन-प्रकार, पारम्परिक एवं गैर-पारम्परिक साधन, वितरण, उपयोग एवं संरक्षण।

इकाई 2: उद्योग – प्रकार, विशिष्ट उद्योगों का विवरण, राष्ट्रीय अर्थव्यवस्था में योगदान, औद्योगिक प्रदूषण एवं उसके नियन्त्रण के उपाय। (5 Marks)

इकाई 3: परिवहन, संचार एवं विदेशी व्यापार (5 Marks)
परिवहन-उपयोगिता एवं साधन : रेलमार्ग, सड़कमार्ग, वायुमार्ग, जलमार्ग, पाइप, पोत और पोताश्रय।
संचार-आधुनिक युग में संचार के साधनों की महत्ता, प्रमुख संचार के साधन, विदेशी व्यापार का आर्थिक विकास में योगदान, आयात एवं निर्यात।

इकाई 4: आपदा प्रबन्धन (5 Marks)
प्राकृतिक आपदाएँ – सूखा, बाढ़, भूकम्प, भूस्खलन, सुनामी।
मानवकृत आपदाएँ – आण्विक, जैविक एवं रासायनिक, बम विस्फोट।
सामान्य आपदाएँ – सावधानी एवं सुरक्षा।

इकाई 5: मानचित्र-पठन एवं अंकन (5 Marks)

इकाई 6: प्रथम स्वतन्त्रता संग्राम एवं उसके पश्चात् (10 Marks)
1857 का प्रथम स्वतन्त्रता संग्राम एवं प्रमुख क्रान्तिकारियों का परिचय, भारतीय राष्ट्रीय कांग्रेस का जन्म-उदारवाद एवं अनुदारवाद।

इकाई 7: स्वतन्त्रता आन्दोलन से सम्बन्धित घटनाएँ (10 Marks)
भारतीय स्वतन्त्रता संग्राम की महत्वपूर्ण घटनाएँ, जैसे-बंगभंग विरोधी आन्दोलन, 1947 में भारत विभाजन एवं प्रमुख विशेषताएँ।
स्वतन्त्रता संग्राम में मध्यप्रदेश का योगदान।

इकाई 8: स्वातन्त्र्योत्तर भारत की प्रमुख घटनाएँ (10 Marks)
कश्मीर समस्या, भारत के सीमावर्ती राष्ट्रों से सम्बन्ध, 1962 का चीन युद्ध, 1965 एवं 1971 के भारत-पाक युद्ध, बांग्लादेश का उदय, भारत में आपातकाल, भारत का आण्विक शक्ति के रूप में उदय।

इकाई 9: भारतीय संविधान (6 Marks)
संविधान सभा का गठन-प्रारूप समिति, भारतीय संविधान की विशेषताएँ।

इकाई 10: भारतीय प्रजातन्त्र की कार्यप्रणाली (7 Marks)
प्रशासनिक व्यवस्था संघात्मक शासन, प्रशासनिक शक्तियों का केन्द्र व राज्य सरकार के मध्य विभाजन, सरकार का स्वरूप व्यवस्थापिका, कार्यपालिका, न्यायपालिका, स्थानीय प्रशासन।

इकाई 11: प्रजातन्त्र के समक्ष प्रमुख चुनौतियाँ (7 Marks)
जनसंख्या विस्फोट, बेरोजगारी, साम्प्रदायिकता, आतंकवाद, मादक पदार्थों का सेवन, प्रजातन्त्र की सफलता में बाधक तत्व एवं उनको दूर करने के उपाय।

इकाई 12: आर्थिक विकास की कहानी (5 Marks)
आर्थिक विकास की प्राचीन एवं अर्वाचीन अवधारणा। राष्ट्रीय एवं प्रति व्यक्ति आय।
मानव विकास के संकेतक भौतिक-अभौतिक उदाहरण सहित, विकसित एवं विकासशील राज्य उदाहरण सहित, भारत में आर्थिक नियोजन, ग्रामीण विकास एवं रोजगार गारण्टी योजना।
मुद्रा एवं वित्तीय प्रणाली-प्राचीन मुद्रा का परिचय, वित्तीय प्रणाली, वित्त संस्थाएँ, जैसे-साहूकार, जमींदार, स्वसहायता समूह, चिट फण्ड, निजी वित्तीय संस्थाएँ एवं विभिन्न बैंक।

इकाई 13: सेवा क्षेत्र (5 Marks)
सेवा क्षेत्र-अर्थ एवं महत्व-आय के घटक के रूप में।
अधोसंरचना-आर्थिक एवं सामाजिक संस्थागत क्षेत्र में भारतीय सेवाओं का विश्व में योगदान।

इकाई 14: उपभोक्ता जागरूकता (5 Marks)
उपभोक्ता जागरूकता-आवश्यकता एवं महत्व-उपभोक्ता शोषण-कारण एवं निदान, वस्तुओं का मानकीकरण, शासन की भूमिका।

इकाई 15: आर्थिक प्रणाली एवं वैश्वीकरण (5 Marks)
आर्थिक प्रणाली-अर्थ, पूँजीवाद, समाजवाद एवं मिश्रित अर्थव्यवस्था के लक्षण, गुण एवं दोष। वैश्वीकरण-अर्थ, आवश्यकता, 1991 से पूर्व विकास एवं 1991 से वर्तमान तक सुधार, वैश्वीकरण के प्रभाव।

MP Board Class 10th Social Science Marking Scheme

इकाई क्र. इकाई का नाम कालखण्ड अंक
1. भारत में संसाधन 20 10
2. उद्योग 07 05
3. परिवहन, संचार एवं विदेशी व्यापार 06 05
4. आपदा प्रबन्धन 05 05
5. मानचित्र-पठन एवं अंकन 05 05
6. प्रथम स्वतन्त्रता संग्राम एवं उसके पश्चात् 15 10
7. स्वतन्त्रता आन्दोलन से सम्बन्धित घटनाएँ 15 10
8. स्वातंत्र्योत्तर भारत की प्रमुख घटनाएँ 15 10
9. भारतीय संविधान 12 06
10. भारतीय प्रजातन्त्र की कार्यप्रणाली 12 07
11. प्रजातन्त्र के समक्ष प्रमुख चुनौतियाँ 12 07
12. आर्थिक विकास की कहानी 10 05
13. सेवा क्षेत्र 08 05
14. उपभोक्ता जागरूकता 08 05
15. आर्थिक प्रणाली और वैश्वीकरण 10 05
पुनरावृत्ति 20
कुल योग (पूर्णांक) 100

MP Board Class 10th Social Science Syllabus in English Medium

सामाजिक विज्ञान कक्षा 10 MP Board

1. Indian Resources:
Types of Resources: Natural resources – Soil Formation types and distribution, soil conservation.
Forest and Wild Life: Forest types, Utility, Wild animals and their conservation Endangered animals.
Agriculture – Main crops. Contribution and Agriculture of National Economy, Flerbal Farms & their utility.
Water Resources – Types, Sources, Distribution of Agriculture, to National Economy Herbal Farms & their utility.
Water Resources – Types, Sources, Distribution, Use, Protection & Conservation.
Mineral Resources – Types, Distribution, Use, Conservation and Economic importance.
Power Resource – Types, Conventional & Non-Conventional, Distribution, Utilisation & Conservation.

2. Industry:
Types, Description of’ Special Industrial, Contribution of Industries to National Economy, Industrial Pollution and efforts for a solution.

3. Transport, Communication and Foreign Trade:
Transport – Utility and types – Railways, Roadways, Airways, Waterways, Pipeline Ports & Harbours.
Communication, Importance of Communication in modern days, Means of Communication. Contribution of foreign Trade to Indian Economy, Imports and Exports.

4. Disaster Management:
Natural Calamities – Drought, Flood, Earthquake, Landslides, Tsunami.
Man-Made Calamities – Nucleic, Biotic and Chemical, Bomb Blast.
General Calamities – Precautions and Security.

5. Maps – Reading and Marking

6. First Struggle of Freedom and after:
The first struggle for Freedom of 1857. Introduction to important revolutionaries, the birth of India National Congress, Moderates and Extremes.

7. Events related to the Independence Revolution
Important events of the Indian struggle for Independence, Revolution of Bange Bhang Partition of India in 1947 and its silent features, Contribution of Madhya Pradesh to the Freedom Struggle.

8. Major events of the Post-Independence period:
Kashmir Problem India’s relation with neighbouring countries, Chinese were with India in 1962, India-Pakistan war of 1965 and 1971, the birth of Bangladesh, emergency in India, Rise of India as atomic power.

9. Indian Constitution:
The organisation of Constitution Draft Committee, Salient Features of Indian Constitution.

10. Working of Indian Democracy:
Federal System, Division of Administrative Power between Centre and States, Organs of Government: Legislature, Executive and Judiciary, Local Administration.

11. Major Challenges before Democracy:
Increase in Population, Unemployment, Communalism, Terrorists, drug addiction;
Major Hindrance in Success of Democracy and measures for removal.

12. Story of Economic Development:
Ancient and modem concept of economic development. National Income & Per-capital Income, Indicators of human development, developing States with examples, Economic Planning in India, physical and non-physical with examples.
Money and Financial System: An Introduction to money in ancient time, Financial Institutions such as money lenders, Zamindars, Self helps groups, chit funds, private financial institutions and different types of banks.

13. Service Sector:
Service Sector – Meaning and Importance as a Component in Income, Infrastructure-Economic and Social Contribution of India’s Service sector in the World.

14. Consumer Awareness:
Consumer Awareness – Need and Importance, Consumer Exploitation, Causes and Remedies, Stadarlisation of Commodities, Government Role.

15. Economic System and Globalisation:
Economic System – Meaning, Capitalism, Socialism and Mixed Economy Characteristics, Merits and Demerties.
Globalisation – Meaning, Needs, Development Earlier to 1991 and Modern Reforms, Impact of Globalisation.

MP Board Class 10th Social Science Marking Scheme in English Medium

Unit Subject content/Lesson Marks Period
1. Resources of India (I) 05 10
Resources of India (II) 05 10
2. Industries in India 05 07
3. Transport Communication and Foreign Trade 05 06
4. Map Reading and Depiction 05 05
5. Disaster Management 05 05
6. The First Freedom Struggle of 1857 05 08
National Awakening and establishment of political organization in India 05 07
7. Freedom Movement and related Events 06 10
Contribution of Madhya Pradesh in Freedom Struggle 04 05
8. Important Events of the Post Independent India 10 15
9. Indian Constitution 06 12
10. The functioning of Indian Democracy 07 12
11. Main Challenges before Democracy 07 12
12. Economic Development & Planning 03 05
Money and Finance System 02 05
13. Economy: Service sector and infrastructure 05 08
14. Consumers Awareness 05 08
15. Economic System 03 06
Globalisation 02 04
Revision 20
Total 100 180

We hope the given MP Board Class 10th Social Science Solutions Guide Pdf Free Download सामाजिक विज्ञान in both Hindi Medium and English Medium will help you. If you have any query regarding Madhya Pradesh MP Board Syllabus Class 10 Social Science Book Solutions Samajik Vigyan Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th English Book Solutions The Rainbow, The Spring Blossom

MP Board 10th English book Solutions Guide Pdf Free Download of Text Books The Rainbow, The Spring Blossom Questions and Answers, Notes, Summary are part of MP Board Class 10th Solutions. Here we have given Madhya Pradesh Syllabus MP Board Class 10 English Book Solutions Pdf of The Rainbow, The Spring Blossom Textbook Workbook Special, and General English Class 10th Solutions.

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MP Board Class 10th Special English Reading Skills

MP Board Class 10th Special English Reading Unseen Passages

MP Board Class 10th Special English Writing Skills

Short Composition

Long Composition

MP Board Class 10th Special English Grammar

The Spring Blossom Textbook General English Class 10th Solutions

You can download MP Board The Spring Blossom Textbook General English Class 10th Solutions, Questions and Answers, Notes, Summary, Lessons: Pronunciation, Translation, Word Meanings, Textual Exercises.

MP Board Class 10th General English Reading Skills

MP Board Class 10th General English Reading Unseen Passages

MP Board Class 10th General English Writing Skills

MP Board Class 10th General English Grammar

MP Board Class 10th General English Syllabus & Marking Scheme

Time: 3.00 Hours
Maximum Marks: 100

Unitwise Weightage

Section Topics Marks
A Reading Skills
Reading Unseen Passages
15
B Writing Skills 20
C Grammar 20
D Prescribed Text Book 45
Total 100

Section A
Reading (15 Marks, 27 Periods)

A1, A2 & A3 Three unseen passages of total 450 words with a variety of questions including 3 marks for vocabulary.
The prose passage will be
Factual passage, e.g. instruction, description, report etc.
Discursive passage e.g. argumentative, interpretative, persuasive etc and
Literary passage, e.g. fiction, poetry, interview, biography etc in nature.
About 150 words in length (5 Marks)
About 150 words in length (5 Marks)
About 150 words in length (5 Marks)
There will be questions for local comprehension besides questions on vocabulary and comprehension of higher-level skills such as drawing inferences and conclusions.

Section B
Writing (20 Marks, 36 Periods)

B1 – Letter writing: One letter based on provided verbal stimulus and context. (6 Marks)
Types of Letter: informal: personal – such as to family and friends
Formal: letters of complaints, enquiries, requests, applications.

B2 – Note making and summarising: 6 Marks
(a) Students will be asked to make notes on the passage given (100 words). (3 Marks)
(b) The students will be asked to prepare a summary looking at the given notes. (3 Marks)

B3 – Composition: A short writing task based on a verbal and/or visual stimulus (diagram, picture, graph, map, chart, table, flow chart etc) (80 words) (8 Marks)
OR
an essay in about 200 words on topics of day to day life.
After given an example practice to a student to write an original composition for two or three years, the option of ‘Essay’ may be eliminated.

Section C
Grammar and Translation (20 Marks, 36 Periods)

A variety of short questions involving the use of particular structures within a context. Test Types used will include cloze, gap-filling, sentence completion, sentence- re-ordering, editing, dialogue-completion and sentence transformation. The grammar syllabus for this class will include the following areas for teaching:

  1. Use of non-finite
  2. Sentence connectives: as, since, while, then, just because, just until
  3. Clauses with what, where and how
  4. Past Tense
  5. Modals: can, could, may, must, might
  6. Translation (from Hindi to Eng) (05 marks)

Note: All other areas covered in Class IX will be tested in Class X as this is an integrated course for this area of learning.

Section D
Text Books (45 Marks, 81 Periods)

Prose (20 Marks)
D1 and D2 – Two extracts from different prose lessons included in the textbook (approximately 100 words each) (5 × 2 = 10 marks)
These extracts chosen from different lessons will be literary and discursive in nature. Each extract will be of 5 marks. One mark in each extract will be for vocabulary. 4 marks in each passage will be used for testing local and global comprehension besides a question on interpretation.

D3 – One out of two questions: extrapolative in nature based on any one of the prose lessons from the textbook to be answered in about 50 to 80 words. (6 Marks)

D4 – One out of two questions on drama text (local and global comprehension questions) (25-30 words) (4 Marks)

Poetry (10 Marks)
D5 – One out of two extracts from different poems from the prescribed reader, each followed by two or three questions to test the local and global comprehension of the set text. (3 Marks)

D6 – One out of two short answer type questions on the interpretation of themes and ideas contained in the poems to be answered in about 20-25 words each. (3 Marks)

D7 and D8 – Two out of three short answer type questions on the appreciation of the poems. (4 Marks) (15 Marks)

D9 – One out of two questions from supplementary Materials to interpret, evaluate and analyse character, the plot or situations occurring in the lessons to be answered in about 100 words. (7 Marks)

D10 & D11 – Two out of three short answer type questions of interpretative and evaluative nature based on lessons (2 × 2 = 4 Marks)

D12 & D13 – Two out of three short answer type questions based on factual aspects of the lessons. (2 × 2 = 4 Marks)

Book Prescribed:

  1. Text Book – The Spring Blossom
  2. WorkBook – The Spring Blossom

Compiled by M.P. Rajya Shiksha Kendra and Published by M.P. Text Book Corporation.

MP Board Class 10th Special English Syllabus & Marking Scheme

Time: 3.00 Hours
Maximum Marks: 100

Unitwise Weightage

Section Topics Marks
A Reading Skills (Reading Unseen Passages) 30
B Writing Skills 30
C Grammar 15
D Prescribed TextBook 25
Total 100

Section A: Reading (30 Marks)

Three unseen passages with a variety of comprehension questions, including 5 marks for word attack skills such as word formation and inferring meaning: (54 Periods)

  1. About 150 words in length (8 marks)
  2. About 200 words in length (8 marks)
  3. About 300 words in length (14 marks)

The total of the passages will be about 650 words. The passage will include one each of the following types:
Factual passage, e.g., instruction, description, report.
Discursive passage involving opinion, e.g., argumentative, persuasive or interpretative text.
Literary passage, e.g., extract from fiction, drama, poetry essay or biography.
In the case of a poetry extract, the text may be shorter than 150 words.

Section B: Writing (30 Marks)

Four writing tasks as indicated below: (54 Periods)

  1. A linguistically controlled task, where a student builds up a composition with guidance (5 marks)
  2. Short composition of not more than 50 words, e.g., a note or notice, message, telegram, short postcard.
  3. Composition based on a verbal and/or visual stimuli such as an advertisement; notice, newspaper cutting, table, diary extracts, notes, letter or other forms of correspondence (10 marks)
  4. Composition based on a verbal and/or visual stimuli such as a diagram, picture, graph, map, cartoon, or flow chart. (10 marks)

One of the longer (10 marks) compositions will draw on the thematic content of the Main Course Book…
At least one task will involve the production of a form of correspondence, e.g., a letter, postcard, note or notice.
One task will involve the production of discursive text in which the student is required to express his/her point of view on the topic given.

Section C: Grammar (15 Marks)

A variety of short questions involving the use of particular structures within a context (i.e., not in isolated sentences). Test types will include, for example., cloze (gap filling exercise with blanks at regular interval), sentences-completion, sentence-recording, editing, dialogue. Completion and sentence transformation. (27 Periods)
The grammar syllabus will be sampled each year, with marks allotted for different areas of the content of the syllabus prescribed for class IX as well as X as detailed below:
By the end of the course, students should be able to use the following accurately and appropriately in context.

1. Verbs forms
Tenses: Present/Past forms, Simple/Continuous forms, Perfect forms, Future time reference, Modals, Active and Passive Voice, Subject-Verb agreement, Non-finite verb forms (infinitive and participles)

2. Sentence Structure
Connectors, Types of Sentences: affirmative/interrogative sentences, negation exclamations, Types of phrases and clauses, Finite and non-finite clauses, noun clauses and phrases, adjective clauses and phrases, adverb and phrases, Indirect Speech, Comparison, Nominalisation

3. Other Areas
Determiners, Pronouns, Prepositions.

  1. Two extracts from different poems from the prescribed readers, each followed by two or three questions to test local and global comprehension of the set text. Each extract will carry four marks. (8 marks)
  2. One or two questions based on one of the drama texts from the prescribed reader to test local and global comprehension of the set text. An extract may or may not be used. (5 marks)
  3. One questions based on one of the prose text from the prescribed reader to test global comprehension and extrapolation beyond the set text. (4 marks)
  4. One extended questions based on one of the prose texts from the prescribed reader to test global comprehension and extrapolation beyond the set text. (8 marks)

Questions will test comprehension at different levels; literal inferential and evaluative.
At the end of class X, the Board’s three-hour examination will test reading and writing skills specified in the teaching/testing objectives together with representative samples of the literature and grammar objectives. The structure of the class X examination paper will be in accordance with the sample paper given in Grammar WorkBook.

Book Prescribed:

  1. Textbook – The Rainbow
  2. Workbook – The Rainbow

Compiled by M.P. Rajya Shiksha Kendra and Published by M.P. Text Book Corporation. Bhopal.

MP Board Class 10 Special English Blue Print of Question Paper

You can download MP Board Class 10th English Blueprint and Marking Scheme 2019-2020 in Hindi and English medium.

MP Board Class 10 English Blue Print of Question Paper 2

MP Board Class 10 General English Blue Print of Question Paper

MP Board Class 10 English Blue Print of Question Paper 1

MP Board Class 10 Special English Format of Question Paper Design

MP Board Class 10 English Format of Question Paper 2

MP Board Class 10 General English Format of Question Paper Design

MP Board Class 10 English Format of Question Paper 1

We hope the given MP Board Class 10th English Solutions Guide Pdf Free Download of Books The Rainbow, The Spring Blossom Solutions, Questions and Answers, Notes, Summary will help you. If you have any queries regarding Madhya Pradesh Syllabus MP Board Class 10 English Book Solutions Pdf of The Rainbow, The Spring Blossom Textbook Workbook Special and General English Class 10th Solutions, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Science Solutions विज्ञान

MP Board Class 10th Science Solutions Guide Pdf Free Download विज्ञान in both Hindi Medium and English Medium are part of MP Board Class 10th Solutions. Here we have given NCERT Madhya Pradesh Syllabus MP Board Class 10 Science Book Solutions Vigyan Pdf.

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

MP Board Class 10th Science Solutions विज्ञान
MP Board Class 10th Science Solutions विज्ञान

MP Board Class 10th Science Book Solutions in Hindi Medium

MP Board Class 10th Science Book Solutions in English Medium

We hope the given MP Board Class 10th Science Solutions Guide Pdf Free Download विज्ञान in both Hindi Medium and English Medium will help you. If you have any query regarding NCERT Madhya Pradesh Syllabus MP Board Class 10 Science Book Solutions Vigyan Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Maths Book Solutions गणित

MP Board Class 10th Maths Solutions Guide Pdf Free Download गणित in both Hindi Medium and English Medium are part of MP Board Class 10th Solutions. Here we have given Madhya Pradesh Syllabus NCERT Solutions for Class 10 Maths Book Ganit Pdf.

Students can also download MP Board 10th Model Papers to help you to revise the complete Syllabus and score more marks in your examinations.

MP Board Class 10th Maths Solutions गणित
MP Board Class 10th Maths Solutions गणित

MP Board Class 10th Maths Book Solutions in Hindi Medium

MP Board Class 10th Maths Chapter 1 वास्तविक संख्याएँ

MP Board Class 10th Maths Chapter 2 बहुपद

MP Board Class 10th Maths Chapter 3 दो चरों वाले रैखिक समीकरण युग्म

MP Board Class 10th Maths Chapter 4 द्विघात समीकरण

MP Board Class 10th Maths Chapter 5 समांतर श्रेढ़ियाँ

MP Board Class 10th Maths Chapter 6 त्रिभुज

MP Board Class 10th Maths Chapter 7 निर्देशांक ज्यामिति

MP Board Class 10th Maths Chapter 8 त्रिकोणमिति का परिचय

MP Board Class 10th Maths Chapter 9 त्रिकोणमिति के कुछ अनुप्रयोग

MP Board Class 10th Maths Chapter 10 वृत्त

MP Board Class 10th Maths Chapter 11 रचनाएँ

MP Board Class 10th Maths Chapter 12 वृतों से संबंधित क्षेत्रफल

MP Board Class 10th Maths Chapter 13 पृष्ठीय क्षेत्रफल एवं आयतन

MP Board Class 10th Maths Chapter 14 सांख्यिकी

MP Board Class 10th Maths Chapter 15 प्रायिकता

MP Board Class 10th Maths Book Solutions in English Medium

MP Board Class 10th Maths Chapter 1 Real Numbers

MP Board Class 10th Maths Chapter 2 Polynomials

MP Board Class 10th Maths Chapter 3 Pair of Linear Equations in Two Variables

MP Board Class 10th Maths Chapter 4 Quadratic Equations

MP Board Class 10th Maths Chapter 5 Arithmetic Progressions

MP Board Class 10th Maths Chapter 6 Triangles

MP Board Class 10th Maths Chapter 7 Coordinate Geometry

MP Board Class 10th Maths Chapter 8 Introduction to Trigonometry

MP Board Class 10th Maths Chapter 9 Some Applications of Trigonometry

MP Board Class 10th Maths Chapter 10 Circles

MP Board Class 10th Maths Chapter 10 Chapter 11 Constructions

MP Board Class 10th Maths Chapter 12 Areas Related to Circles

MP Board Class 10th Maths Chapter 13 Surface Areas and Volumes

MP Board Class 10th Maths Chapter 14 Statistics

MP Board Class 10th Maths Chapter 15 Probability

We hope the given MP Board Class 10th Maths Solutions Guide Pdf Free Download गणित in both Hindi Medium and English Medium will help you. If you have any query regarding NCERT Madhya Pradesh Syllabus MP Board Class 10 Maths Book Solutions Ganit Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements

MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements

MP Board Class 10th Science Chapter 5 Intext Questions

Intext Questions Page No. 81

Question 1.
Did Dobereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out.
Answer:
In Newland’s Octaves, the properties of lithium and sodium were found to be the same. This arrangement is also found in Dobereiner triads.

Question 2.
What were the limitations of Dobereiner’s classification?
Answer:
Dobereiner could identify only three ‘triads’ from the elements known at that time. Hence this system of classification into triads was not found to be useful.

MP Board Solutions

Question 3.
What were the limitations of Newlands’ Law of Octaves?
Answer:

The Limitations of Newlands’ Law of Oclaves is as follows:

  1. It was found that the Law of Octaves was applicable only upto calcium, as after calcium every eighth element did not possess properties similar to that of the first.
  2. It was assumed by Newlands’ that only 56 elements existed in nature and no more elements would be discovered in the future. But later on, several new elements were discovered, whose properties did not fit into the Law of Octaves.
  3. In order to fit elements into his Table, Newlands adjusted two elements in the same slot, but also put some unlike elements under the same note.

Intext Questions Page No. 85

Question 1.
Use Mendeleev’s Periodic Table to predict the formulae for the oxides of the following elements: K, C, Al, Si, Ba.
Answer:

  1. K is in I group. Its oxide is K2O
  2. C, is in IV group, its oxide is CO2
  3. Al, is in III group, its oxide is Al2O3
  4. Si, is IV group, its oxide is SiO2
  5. Ba, is in II group, its oxide is BaO

Question 2.
Besides gallium, which other elements have since been discovered that were left by Mendeleev in his Periodic Table? (any two)
Answer:
Scandium and germanium.

Question 3.
What were the criteria used by Mendeleev in creating his Periodic Table?
Answer:
Mendeleev used the relationship between the atomic masses of the elements and their physical and chemical properties. Among chemical properties, he examined the compound formed by elements with oxygen and hydrogen. He found that if the 63 elements known at that time were arranged in the increasing order of their atomic masses, the properties of elements and also formulae of their oxides and hydrides gradually changed from element to element and at a certain interval they suddenly started almost repealing relationship was expressed by Mendeleev’s periodic law. i,e the properties of examinants are the periodic functions of their atomic masses.

Question 4.
Why do you think the noble gases are placed in a separate group?
Answer:
All noble gases are inert elements. Their properties are different from other elements and are the least reactive. Therefore, the noble gases are placed in a separate group.

Intext Questions Page No. 90

Question 1.
How could the Modern Periodic Table remove various anomalies of Mendeleev’s Periodic Table?
Answer:

  1. In the Modern periodic Table atomic number of an elements is a more fundamental property than its atomic mass.
  2. The anomalous position of hydrogen can be discussed after we see what are the basis on which the position of an elements in the Modern Periodic Table depends.
  3. The elements present in any one group have the same number of valence electrons.
  4. Atoms of different elements with the same number of occupied shells are placed in the same period.
  5. In the Modern Periodic Table, a zig-zag line separated metals from non-metals.

MP Board Solutions

A valence electron calculator is a tool that helps you find the number of valence electrons in an atom.

Question 2.
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Answer:
Calcium (Ca) and Strontium (Sr) is expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is the same in all of these three elements and since chemical properties are due to valence electrons, they show the same chemical reactions.

Question 3.
Name:

  1. Three elements that have a single electron in their outermost shells.
  2. Two elements that have two electrons in their outermost shells.
  3. Three elements with filled outermost shells.

Answer:

  1. Lithium (Li), Sodium (Na), and Potassium (K) has a single electron in their outermost shells.
  2. Magnesium (Mg) and Calcium (Ca) have two electrons in their outermost shells.
  3. Neon (Ne), Argon (Ar), and Xenon (Xe) have filled outermost shells.

Question 4.
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Answer:

Lithium, sodium and potassium – These three elements have one electron in their outermost orbit.

b) Helium is an unreactive gas and neon is a gas of extremely low reactivity. What, if anything, do their atoms have in common?
Answer:
Both helium (He) and neon (Ne) have filled outermost shells. Helium has a duplet in its K shells, while neon has an octet in its L shells.

Question 5.
In the Modern Periodic Table, which are the metals among the first ten elements?
Answer:
In the modem periodic table, Lithium and Beryllium are the metals among the first 10 elements.

Question 6.
By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic?
Ga Ge As Se Be
Answer:
Since, ‘Be’ lies to the extreme left-hand side of the periodic table, ‘Be’ is the most metallic among the given elements.

MP Board Class 10th Science Chapter 5 Ncert Textbook Exercises

Question 1.
Which of the following statements is not a correct statement about the trends when going from left to right across the periods of the periodic table.
(a) The elements become less metallic in nature.
(b) The number of valence electrons increases.
(c) The atoms lose their electrons more easily.
(d) The oxides become more acidic.
Answer:
(c) The atoms lose their electrons more easily.

Question 2.
Element X forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the Periodic table as:
(a) Na
(b) Mg
(c) Al
(d) Si
Answer:
(b) Mg

Question 3.
Which element has:
(a) two shells, both of which are completely filled with electrons?
(b) Electronic configuration 2, 8, 2?
(c) a total of three shells, with four electrons in its valence shell?
(d) a total of two shells, with three electrons in its valence shell?
(e) twice as many electrons in its second shell as in its first shell?
Answer:
(a) Neon
(b) Magnesium
(c) Silicon
(d) Boron
(e) Carbon

Question 4.
(a) What property do all elements in the same column of the Periodic table as Boron have in common?
(b) What property do all elements in the same column of the Periodic table as Fluorine have in common?
Answer:
(a) Valency equal to 3.
(b) Valency equal to 1.

MP Board Solutions

Question 5.
An atom has electronic configuration 2, 8, 7.
(a) What is the atomic number of this element?
(b) To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses.)
N(7) F(9) P(15) Ar(18)
Answer:
(a) The atomic number of this element is 17.
(b) It would be chemically similar to F(9) with configuration as 2, 7.

Question 6.
The position of three elements A, B and C in the Periodic table is shown below:
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 1
(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
Answer:
(a) A is a non-metal.
(b) C is less reactive than A because reactivity decreases down the group in halogens.
(c) C should be smaller in size than B as moving across a period, the nuclear charge increases and therefore, electrons come closer to the nucleus.
(d) A will form an anion as it will accept an electron to complete its octet.

Question 7.
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
Answer:
Nitrogen (7) : 2, 5
Phosphorus (15) : 2, 8, 5
Nitrogen is more electronegative because Metallic character decreases across a period and increased down a group.

Question 8.
How does the electronic configuration of an atom relate to its position in the Modern Periodic table?
Answer:
In the modern periodic table, atoms with similar electronic configurations are placed in the same column. In a group, the number of valence electrons remains the same. Elements across a period show an increase in the number of valence electrons.

Question 9.
In the Modern Periodic table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21, and 38. Which of these have physical and chemical properties resembling calcium?
Answer:
The element with atomic number 12 has the same chemical properties as that of calcium. This is because both of them have same number of valence electrons (2).

Question 10.
Compare and contrast the arrangement of elements in Mendeleev’s Periodic table and the Modern Periodic table.
Answer:

Mendeleev s Periodic table:

    1. Elements are arranged in the increasing order of their atomic mass.
    2. This table has 8 groups and 6 periods. And each group is subdivided as an A and B.
    3. In this table, Hydrogen has no position.
    4. No position for isotopes, because in Mendeleev period these are not discovered.

Modern Periodic table:

    1. Elements are arranged in the increasing order of their atomic number.
    2. It has 18 groups and 7 periods.
    3. Inert gases are placed in separate groups.
    4. In this table, a zigzag line separates Metals from Non-metals.

(or)

Mendeleev’s Periodic table vs Modern Periodic table:

  1. Elements are arranged in the increasing order of their atomic masses, while in Modern Periodic table elements are arranged in the increasing order of their atomic numbers.
  2. There are a total of 7 groups (columns) and 6 periods (rows) while in Mendeleev’s’ Periodic Table, there are a total of 18 groups (columns) and 7 periods (rows).
  3. Elements having similar properties were placed directly under one another, while in Mendeleev’s’ Periodic Table elements having the same number of valence electrons are present in the same group.
  4. In Mendeleev’s Periodic Table the position of hydrogen could not be explained, while in Modern Periodic table hydrogen is placed above alkali metals.
  5. No distinguishing positions for metals and non-metals in Mendeleev’s Periodic Table while in Modern Periodic Table metals are present at the left-hand side of the periodic table whereas nonmetals are present at the right-hand side.

MP Board Class 10th Science Chapter 5 Additional Questions

MP Board Class 10th Science Chapter 5 Multiple Choice Questions

Question 1.
Which of the following statements is correct about the trends when going down in a group of the periodic table?
(a) Elements become less electropositive in nature.
(b) Element oxides become more acidic.
(c) Valence electrons increases.
(d) Elements lose their electrons more easily.
Answer:
(d) Elements lose their electrons more easily.

Question 2.
Element A forms a chloride with the formula ACl3, which is a stable compound. A would most likely be the same group of the Periodic Table as –
(a) Na
(b) Mg
(c) Al
(d) Si
Answer:
(c) Al

Question 3.
Which of the following are coin metals?
(a) Ne, Ca, Na
(b) H2, N2, O2
(c) Li, Na, K
(d) Cu, Au, Ag
Answer:
(d) Cu, Au, Ag

Question 4.
Who gave the triad arrangement of elements?
(a) Mendeleev
(b) Newlands
(c) Dalton
(d) Dobereiner
Answer:
(d) Dobereiner

Question 5.
Newlands periodic table is based on the
(a) Atomic weight
(b) Atomic number
(c) Atomic radius
(d) Atomic volume
Answer:
(a) Atomic weight

Question 6.
Which of the following is not gas in normal atmospheric condition?
(a) Helium (He)
(b) Argon (Ar)
(c) Bromine (Br)
(d) Chlorine (Cl)
Answer:
(c) Bromine (Br)

Question 7.
While moving left to right across a period, the atomic radii –
(a) Remains the same
(b) Approaches zero
(c) Decreases
(d) Increases first then decreases
Answer:
(c) Decreases

Question 8.
Which element is a metalloid?
(a) Carbon
(b) Nitrogen
(c) Oxygen
(d) Silicon
Answer:
(d) Silicon

MP Board Solutions

Question 9.
Moseley’s periodic table is based on
(a) Atomic mass
(b) Mass number
(c) Atomic number
(d) Atomic volume
Answer:
(c) Atomic number

Question 10.
Which of the following is a group of highly electronegative elements?
(a) Cl, Br, I
(b) S, Se, Te
(c) Na, K, Rb
(d) Ca, Sr, Ba
Answer:
(a) Cl, Br, I

Question 11.
Which of the following elements is a non-metal?
(a) Aluminium
(b) Chlorine
(c) Sodium
(d) Silicon
Answer:
(b) Chlorine

Question 12.
As we move down in a group in Modern Periodic Table, the size of elements generally
(a) increases
(b) decreases
(c) remain the same
(d) first, increase then decrease
Answer:
(a) increases

Question 13.
As we move from top to bottom in a group in Modern Periodic Table, the electronegativity of elements
(a) Increases
(b) Decreases
(c) No change
(d) Not certain
Answer:
(b) Decreases

Question 14.
Which group of elements is considered most electropositive?
(a) Group 1
(b) Group 2
(c) Group 17
(d) Group 18
Answer:
(a) Group 1

Question 15.
Group 1 elements are also called as:
(a) Alkali metals
(b) Alkaline earth metals
(c) Halogens
(d) Noble gases
Answer:
(a) Alkali metals

Question 16.
Group 17 elements are also called as:
(a) Alkali Metals
(b) Alkaline Earth Metals
(c) Halogens
(d) Noble Gases
Answer:
(c) Halogens

Question 17.
How many elements were known when Mendeleev started his work?
(a) 100
(b) 215
(c) 65
(d) 80
Answer:
(c) 65

Question 18.
Why Mendeleev left spaces in his Periodic Table?
(a) A mistake
(b) For future elements
(c) For Isotopes
(d) For Isobars
Answer:
(b) For future elements

Question 19.
Why Lanthanoids and Actinoids are placed below in the Periodic Table?
(a) A mistake
(b) Better representation and view
(c) They were found very recently
(d) All of the above
Answer:
(c) They were found very recently

Question 20.
A period may have elements with –
(a) Variable atomic sizes
(b) Variable atomic number
(c) Variable valency
(d) All of the above
Answer:
(d) All of the above

Question 21.
Element A belongs to group 15. The formula of its hydride will:
(a) AH
(b) AH2
(c) AH3
(d) A3H
Answer:
(c) AH3

Question 22.
An electropositive element, A with 2 valence electron will form which type of oxide?
(a) AO
(b) A2O
(c) AO2
(d) AO3
Answer:
(a) AO

Question 23.
Most electronegative element in our Periodic Table:
(a) Iron
(b) Nitrogen
(c) Carbon
(d) Flourine
Answer:
(d) Flourine

Question 24.
Which of the following elements where not among metals/elements named to fill the gap of Mendeleev’s Periodic Tablespaces?
(a) Cobalt
(b) Scandium
(c) Gallium
(d) Germanium
Answer:
(a) Cobalt

Question 25.
In a group, all elements have similar ………..
(a) Electronic configuration
(b) Valence electron
(c) Electronegativity
(d) All of these
Answer:
(b) Valence electron

MP Board Solutions

Question 26.
Which among the following is a noble gas?
(a) C
(b) N
(c) O
(d) Ne
Answer:
(d) Ne

Question 27.
Which of the following elements has electronic configuration E = 2, 6?
(a) C
(b) N
(c) O
(d) Ne
Answer:
(c) O

Question 28.
Which of the following elements is a metalloid?
(a) B
(b) Al
(c) S
(d) P
Answer:
(a) B

Question 29.
Which of the following is not a halogen?
(a) Br
(b) I
(c) Te
(d) At
Answer:
(c) Te

Question 30.
Which element has a total of two shells, with four valence electrons?
(a) C
(b) N
(c) Br
(d) Co
Answer:
(a) C
(ii) Match column A’s description with column B’s Particulars.
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 2
Answers:

  1. → 12
  2. → 3
  3. → 2
  4. → 4
  5. → 5
  6. → 13
  7. → 11
  8. → 14
  9. → 10
  10. → 10
  11. → 6
  12. → 1
  13. → 7
  14. → 8

MP Board Class 10th Science Chapter 5 Very Short Answer Type Questions

Question 1.
What would be the maximum number of electrons present in the outermost shell of atoms in the first period of Periodic Table?
Answer:
Two

Question 2.
What is Solder?
Answer:
It is an alloy of lead (Pb) and tin (Sn).

Question 3.
What is anode mud?
Answer:
During electrolytic refining, the soluble impurities go into the solution, Whereas, the insoluble impurities settle down at the bottom of anode and are known as anode mud.

Question 4.
Which metal is used with iron oxide to join railway tracks or cracked machine parts?
Answer:
Aluminium.

Question 5.
Give the thermit reaction.
Answer:
Fe2O3(s) + 2Al(s) → 2 Fe(l) + Al2O3(s) + Heat

Question 6.
Roasting is used for the extraction of which ore?
Answer:
Sulphide ore.

Question 7.
Name the metal lowest inactivity series (relative reactivities of metals).
Answer:
Au or Gold.

Question 8.
Which gas is evolved when a metal reacts with nitric acid?
Answer:
Hydrogen gas.

Question 9.
Name any two metal that does not react with water at all.
Answer:
Lead, copper, gold, silver. (any two)

Question 10.
Complete the following reaction: Metal oxide + water →.
Answer:
Metal hydroxide.

Question 11.
Which material is used to coat electric wires in homes?
Answer:
PVC or Polyvinylchloride.

MP Board Solutions

Question 12.
Name any two metals that are poor conductors of heat.
Answer:
Lead and mercury.

MP Board Class 10th Science Chapter 5 Short Answer Type Questions

Question 1.
What are the limitations of the Modern Periodic Table?
Answer:
The limitations of the Modern Periodic Table:
Position of hydrogen still dicey. It is not fixed till now. Position of lanthanides and actinides has not been given inside the main body of the Periodic Table. It does not reflect the exact distribution of electrons of some of the transition and inner transition elements.

Question 2.
Two elements X and Y have atomic numbers 12 and 16 respectively. Write the electronic configuration for these elements. To which period of the Modern Periodic Table do these two elements belong? What type of bond will be formed between them and why?
Answer:
Electronic configuration of X (Z= 12): 2, 8,2
Electronic configuration of Y (Z = 16): 2, 8,6
Both these elements belong to the third period. An ionic bond is formed between X and Y due to the transfer of two electrons from X to Y.

Question 3.
The present classification of elements is based on which fundamental property of elements?
Answer:
Atomic number.

Question 4.
Li, Na and K are the elements of a Dobereiner’s Triad. If the atomic mass of Li is 7 and that of K is 39, what would be the atomic mass of Na?
Answer:
According to of Dobereiner’s law of triads, the atomic mass of the middle element, in this case, Na, should be the arithmetic mean of Li and K. Thus, Arithmetic mean of Li and K = (7 + 39)/2 = 23.

Question 5.
Define Dobereiner’s law of triads.
Answer:
It states, “When elements are placed in order of the ascending order of atomic masses, groups of three elements having similar properties are obtained. The atomic mass of the middle element of the triad is equal to the mean of the atomic masses of the other two elements of the triad.”

Question 6.
Why did Dobereiner’s system of classification fail?
Answer:
The major drawback of Döbereiner’s classification was that it was valid only for a few groups of elements known during that time. He was able to identify three triads only. Also, more accurate measurements of atomic masses showed that the mid element of the triad did not really have the mean value of the sum of the other two elements of the triad. For elements of very low mass or very high mass, the law did not hold good. For example, Fluorine (F), Chlorine (Cl), Bromine (Br). The atomic mass of Cl is not an arithmetic mean of atomic masses of F and Br.

Question 7.
Explain the position of metalloids in the Modern Periodic Table.
Answer:
In the Modern Periodic Table, a zig-zag line separates metals from non-metals. The borderline elements – boron, silicon, germanium, arsenic, antimony, tellurium and polonium – are intermediate in properties and are called metalloids or semi-metals.

Question 8.
Why silicon is classified as metalloid?
Answer:
Silicon is classified as a semi-metal or metalloid because it exhibits some properties of both metals and non-metals.

Question 9.
State Newlands law of octaves.
Answer;
Elements are arranged in increasing order of their atomic masses such that the properties of the eighth element are the repetition of the properties of the first element (similar to eighth note in an octave of music).

Question 10.
X and Y are the two elements having similar properties which obey Newlands law of octaves. How many elements are there in between X and Y?
Answer:
The law states there are eight elements in an octave (row). A number of elements between X and Y are six.

Question 11.
What are the drawbacks of Newlands law of octaves?
Answer:
Following are the major drawbacks:

  1. Worked well with lighter elements (upto calcium. After those elements in the eighth column did not possess properties similar to elements in the first column.
  2. Newland assumed only 56 elements existed so far. Later, new elements were discovered which did not fit into octaves table.
  3. Newland adjusted few elements in the same slot through their properties were quite different, e.g., Cobalt and nickel are in the same slot and these are placed in the same column as fluorine, chlorine and bromine which have very different properties than these elements. Iron, which resembles cobalt and nickel in properties, has been placed far away from these elements.

MP Board Class 10th Science Chapter 5 Long Answer Type Questions

Question 1.
What are the salient features of the Modern Periodic Table?
Answer:
In a period of the Periodic Table, the number of valence electrons increases as the atomic number increases. As a result, elements change from metal to metalloid to nonmetal to a noble gas. Atomic size is a periodic property. As atomic number increases in a period, the atomic radius decreases. As atomic number increases in a group, atomic radius increases.

Positive ions have smaller atomic radii than the neutral atoms from which they derive. Negative ions have larger atomic radii than their neutral atoms. Positive ions in the same group increase in size down the group. In a group, each element has the same number of valence electrons. As a result, the elements in a group show similar chemical behaviour.

Metallic character decreases from left to right in a period because of the increase in the effective nuclear charge. Non-metallic character increase from left to right in a period because of the increase in effective nuclear charge. Non-metallic character decreases down the group because of increase in the size of the atom.

MP Board Solutions

Question 2.
What periodic trends do we observe in terms of atomic radii or atomic sizes in Modern Periodic table?
Answer:
Following two trends are observed:
1. Within each column (group), atomic radius tends to increase from top to bottom. This trend results primarily from the increase in the number of the outer electrons. As we go down a column, the outer electrons have a greater probability of being farther from the nucleus, causing the atom to increase in size.

2. Within each row (period), the atomic radius tends to decrease from left to right. The major factor influencing this trend is the increase in the nuclear charge as we move across a row. The increasing effective nuclear charge steadily draws the valence electrons closer to the nucleus, causing the atomic radius to decrease.

Question 3.
An element A with atomic number 19 combines separately with NO3and (SO4)2,(PO4)3radicals:
(a) Give the electronic configuration of element A.
(b) Write the formulae of the three compounds so formed.
(c) To which group of the periodic table does the element ‘R’ belong?
(d) Does it form covalent or ionic compound? Why?
Answer:
(a) Electronic configuration of A: 2,8, 8, 1.
(b) Compounds formed are A(NO3), A2(SO4) and K3(PO4).
(c) A has one valence electron and hence, it belongs to the first group.
(d) It forms the ionic compound.

Question 4.
Describe types of periods, blocks and trends of periodic properties along periods associated with Modern Periodic Table.
Answer:
Periods:
First period (Atomic number 1 and 2): This is the shortest period. It contains only two elements (hydrogen and helium).

Second Period: (Atomic number 3 to 10): It contains eight elements (lithium to neon).

Third period (Atomic number 11 to 18): It contains eight elements (sodium to argon).

Fourth period (Atomic number 19 to 36): Row contains eighteen elements (potassium to krypton). i.e., 8 normal elements and 10 transition elements.

5th period (Atomic number 37 to 54): Contains 18 elements (rubidium to xenon) includes 8 normal elements and 10 transition elements.

Sixth period (Atomic number 55 to 86): The longest period. It contains 32 elements (caesium to radon) has 8 normal elements, 10 transition elements and 14 inner transition elements (lanthanides).

7th period (Atomic number 87 to 118): As like the sixth period, this period also can accommodate 32 elements. Till now 26 elements have been authenticated by IUPAC.

Blocks in Periodic Table:
The periodic table includes “blocks” defined in terms of which type of orbital is being filled via the Aufbau principle. This gives us the s-block, p-block, d-block, and f-block.

Blocks:
The s-, p-, d-, and f-blocks contain elements with outer electrons in the same type of orbital. Another key link between electron arrangement and position in the periodic table is that elements in any one main group have the same number of electrons in their highest energy level. The number of elements discovered so far is 118. The last element authenticated by IUPAC is Cn112 (Copernicium).

Properties of Periods: As you proceed to the left in a period or as you proceed down within a group:

  1. The metallic strength increases (Non-Metallic Strength decreases).
  2. The atomic radius increases.
  3. The ionization potential decreases.
  4. The electron affinity decreases.
  5. The electronegativity decreases.

MP Board Class 10th Science Chapter 5 Textbook Activities

Class 10 Science Activity 5.1 Page No. 84

  1. Looking at its resemblance to alkali metals and the halogen family, try to assign hydrogen a correct position in Mendeleev’s Period Table.
  2. To which group and period should hydrogen be assigned?

Observations:

  1. No position can be fixed for hydrogen in the Mendeleev’s Periodic Table.
  2. Properties of hydrogen fit with alkali metal as it combines with halogens, oxygen and sulphur to form compounds.
  3. Properties of hydrogen also fit or are similar to halogen as it exists in the form of diatomic molecules and combines with metals and non-metals forming covalent compounds.

Class 10 Science Activity 5.2 Page No. 85

  1. Consider the isotopes of chlorine, Cl-35 and CI-37.
  2. Would you place them in different slots because their atomic masses are different?
  3. Or would you place them in the same position because their chemical properties are the same?

Observations:
Two isotopes of chlorine are Cl-35 and Cl-37. Both isotopes have the same chemical properties and hence, both isotopes should be placed in the same position.

Class 10 Science Activity 5.3 Page No. 85

  1. How were the positions of cobalt and nickel resolved in the Modern Periodic Table?
  2. How were the positions of isotopes of various elements decided in the Modern Periodic Table?
  3. Is it possible to have an element with atomic number 1, 5 placed between hydrogen and helium?
  4. Where do you think should hydrogen be placed in the Modern Periodic Table?

Observations:
The position of Cobalt and Nickel were decided by placing them in the increasing order of atomic number in the Modern Periodic Table. Since isotopes are elements with the similar atomic number they are placed in the same position as its basic elements in the modern periodic table.

Class 10 Science Activity 5.4 Page No. 87

  1. Look at group 1 of the Modern Periodic Table, and name the elements present in it. Write down the electronic configuration of the first three elements of group 1.
  2. What similarity do you find in their electronic configurations?
  3. How many valence electrons are present in these three elements?

Observations:
Elements present in Group 1 are:
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 3
Electronic configuration of the first three elements of Group I are as below:
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 4

Class 10 Science Activity 5.6 Page No. 87

  1. If you look at the Modern Periodic Table, you will find that the elements Li, Be, B, C, N, O, F, and Ne are present in the second period. Write down their electronic configurations.
  2. Do these elements also contain the same number of valence electrons?
  3. Do they contain the same number of shells?

Observations:
No, these elements contain variable valence electrons as they belong to different groups:
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 5

Class 10 Science Activity 5.6 Page No. 88

  1. How do you calculate the valency of an element from its electronic configuration?
  2. What is the valency of magnesium with atomic number 12 and sulphur with atomic number 16?
  3. Similarly, find out the valencies of the first twenty elements.
  4. How does the valency vary in a period on going from left to right?
  5. How does the valency vary in going down a group?

Observations:

  1. Valency of an element can be calculated by the numbers of valence electron present.
  2. Valency of Magnesium: 2
  3. Valency of Sulphur: 2 Variation of valency while moving left to right in a period.
    1 → 2 → 3 → 4 → 3 → 2 → 1 → 0
  4. Variation of valency while going down in a group does not change.

Class 10 Science Activity 5.7 Page No. 88

  1. Atomic radii of the elements of the second period are given below:
    MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 6
  2. Arrange them in decreasing order of their atomic radii.
  3. Are the elements now arranged in the pattern of a period in the Periodic Table?
  4. Which elements have the largest and the smallest atoms?
  5. How does the atomic radius change as you go from left to right in a period?

Observations:
Decreasing order of atomic radii of following elements:

  1. O < N < C < B < Be < Li
  2. No in pattern.
  3. Oxygen is smallest as per given data while Li is largest.
  4. Atomic radius reduces while moving right in a group a, nuclear charge increase.

Class 10 Science Activity 5.8 Page No. 89

  1. Study the variation in the atomic radii of first group elements given below and arrange them in increasing order.
    MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 7
  2. Name the elements which have the smallest and the largest atoms.
  3. How does the atomic size vary as you go down a group?

MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 8

  1. Sodium (Na) has the smallest atom and calcium (Ca) has the largest atom.
  2. Atomic size increases as we go down a group.

Class 10 Science Activity 5.9 Page No. 89

  1. Examine elements of the third period and classify them as metals and non-metals.
  2. On which side of the Periodic Table do you find the metals?
  3. On which side of the Periodic Table do you find the non-metals?

Observations:
Elements of the third period are:
MP Board Class 10th Science Solutions Chapter 5 Periodic Classification of Elements 9

Class 10 Science Activity 5.10 Page No. 89

  1. How do you think the tendency to lose electrons change in a group?
  2. How will this tendency change in a period?

Observations:
Metallic property reduces while moving right in a period.

Class 10 Science Activity 5.11 Page No. 90

  1. How would the tendency to gain electrons change as you go from left to right across a period? How
  2. would the tendency to gain electrons change as you go down a group?

Observations:

  1. The electrons increases as we go left to right in a period up to 17th group. It decreases in the 18th
  2. group. The tendency of gaining the electrons decreases as we go down a group.

MP Board Class 10th Science Solutions

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts

In this article, we will share MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts

MP Board Class 10th Science Chapter 2 Intext Questions

Intext Questions Page No. 18

Question 1.
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
Answer:

  • Put the red litmus paper turn by turn in each of the three test tubes. The solution which turns the red litmus paper to blue will be a basic solution here, the blue litmus paper formed can now be used to test the acidic solution.
  • Put this blue litmus paper in the remaining two test tubes one by one. The solution which turns the blue litmus paper to red will be the acidic solution.
  • The solution which has no effect on any litmus paper will be neutral and hence it will be distilled water.

Intext Questions Page No. 22

Question 1.
Why should curd and sour substances not be kept in brass and copper vessels?
Answer:
Curd and other sour substances are acidic in nature. So, when they are kept in brass and copper vessels, harmful products along with hydrogen gas are produced which spoil the food.

MP Board Solutions

Question 2.
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Answer:
Hydrogen gas is usually liberated when an acid reacts with a metal. Let us illustrate it with the following examples:

  1. Add some pieces of zinc granules into 5ml of a dilute solution of sulphuric acid (H2SO4).
  2. Shake it well.
  3. Pass the produced gas into a soap solution.
  4. Now, soap bubbles are formed in the soap solution and these soap bubbles contain hydrogen.
  5. Bring a burning candle near a gas-filled bubble. A candle burns with a pop sound. So, the following reaction takes place:
    H2SO4(aq) + Zn(s) → ZnSO4(aq) + H2
    MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 1
  6. We can test the evolved hydrogen gas by its burning with a pop sound when a candle is brought near the soap bubbles.

pH Calculator is a free online tool that displays the pH value for the given chemical solution.

Question 3.
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
Answer:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 2

Intext Questions Page No. 25

Question 1.
Why do HCl, HNO3 etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character?
Answer:
HCl or HNO3 dissolve in water to form H+ or H3O+ ions in aqueous solutions which show their acidic character. The following reactions take place when HCl or HNO3 are mixed with water:
HCl(aq) → H+ + Cl
H+ + H2O → H3O+
On the other hand, when alcohol and glucose are mixed with water they do not dissolve to form ions due to the presence of hydrogen bonds and basic character. Hence, they do not show acidic character.

Question 2.
Why does an aqueous solution of acid conduct electricity?
Answer:
In the aqueous solution, acid forms ions and these ions are conductor of electricity.

Question 3.
Why does dry HCl gas not change the colour of the dry litmus paper?
Answer:
Dry HCl gas does not change the colour of the dry litmus paper because it has no hydrogen ions (H+) or hydronium (H3O+) ions in it.

MP Board Solutions

Question 4.
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
Answer:
Mixing water to acid is an exothermic reaction. Hence while diluting an acid it is recommended that the acid should be added to water and not water to acid. If we mix water to acid explosion occurs and burning take place.

Question 5.
How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?
Answer:
Concentration of hydronium ions (H3O+) decreases and becomes weak. In this way concentration of hydronium ion affects when a solution of acid is diluted.

Question 6.
How is the concentration of hydroxide ions (OH) affected when excess base is dissolved in a solution of sodium hydroxide?
Answer:
When excess base is dissolved in a solution of sodium hydroxide concentration of OH Hydroxide ion is more.
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 3

Intext Questions Page No. 28

Question 1.
You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?
Answer:
Solution ‘A’ is acidic because pH of the solution A is 6 which is less than 7 while solution ‘B’ is basic because pH of the solution ‘B’ is 8 which is greater than 7. Solution ‘A’ has more hydrogen ion concentration in comparison to solution ‘B’ because solution ‘A’ is acidic.

If the pH value is less than 7, it represents an acidic solution.
If the pH value is more than 7, it represents a base.
It the pH – 6 is acidic it has more concentration of ions than pH-8 which is a base.

Question 2.
What effect does the concentration of H+(aq) ions have on the nature of the solution?
Answer:
If the concentration of H+(aq) ions is increased then the solution becomes acidic and if the concentration of H+(aq) ions is decreased then the solution becomes basic in nature.

Question 3.
Do basic solutions also have H+(aq) ions? If yes, then why are these basic?
Answer:
Yes. H+ ions are always present in basic solution. Concentration of Basic is more than OH ions.

Question 4.
Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
Answer:
If the soil is acidic and improper for cultivation, then to increase the basicity of soil, the farmer would treat the soil with quick lime or slaked lime or chalk.

Intext Questions Page No. 33

Question 1.
What is the common name of the compound CaOCl2?
Answer:
Bleaching powder.

Question 2.
Name the substance which on treatment with chlorine yields bleaching powder.
Answer:
Dry slaked lime or calcium hydroxide.

Question 3.
Name the sodium compound which is used for softening hard water.
Answer:
Sodium carbonate.
Na2CO3, 10 H2O is the compound of sodium to soften hard water.

MP Board Solutions

Question 4.
What will happen if a solution of sodium hydrocarbon is heated? Give the equation of the reaction involved.
Answer:
When sodium hydrocarbon is heated then sodium carbonate and water are formed along with the evolution of carbon dioxide gas.
2NaHCO3 → Na2CO3 + H2O + CO2

Question 5.
Write an equation to show the reaction between Plaster of Paris and water.
Answer:
Plaster of Paris reacts with water to form gypsum.
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 4

MP Board Class 10th Science Chapter 2 Ncert Textbook Exercises

Question 1.
A solution turns red litmus blue, its pH is likely to be
(a) 1
(b) 4
(c) 5
(d) 10
Answer:
(d) 10
Bases turn red litmus to blue. pH value of 7 is greater than 7. Hence this solution changes red litmus to blue.

Question 2.
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains
(a) NaCl
(b) HCl
(c) LiCl
(d) KCl
Answer:
b) the solution contains HCl.

Question 3.
10 ml of a solution of NaOH is found to be completely neutralised by 8 ml of a given solution of HCl. If we take 20 ml of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be
(a) 4 ml
(b) 8 ml
(c) 12 ml
(d) 16 ml
Answer:
d) 16 mL HCl solution is required.

Question 4.
Which one of the following types of medicines are used for treating indigestion?
(a) Antibiotic
(b) Analgesic
(c) Antacid
(d) Antiseptic
Answer:
c) Antacid is used to treat indigestion.

Question 5.
Write word equations and then balanced equations for the reaction taking place when:
(a) dilute sulphuric acid reacts with zinc granules.
(b) dilute hydrochloric acid reacts with magnesium ribbon.
(c) dilute sulphuric acid reacts with aluminium powder.
(d) dilute hydrochloric acid reacts with iron filings.
Answer:
a) Sulphuric acid + Zinc ➝ zinc Sulphate + Hydrogen
H2SO(aq) + Zn(s) ➝ ZnSO4(aq) + H2(g)
b) hydro Chloric acid + magnesium ➝ Magnisium Chloride + Hydrogen
2HCl(aq) + Mg(s) ➝ MgCl2(aq) + H2(g)
(c) Sulphuric Hydrigen Sulphate + Aluminium ➝ Aluminium + Hydrogen Chloride
3H2SO2(aq) + Mg(s) ➝ MgCl2(aq) + H2(g)
d) Hydrochloric acid  + Iron ➝ Ferric + Hydrogen
6HCl(aq) + 2Fe(s) ➝ 2FeCl2(aq) + 3H2(g)

Question 6.
Compounds such as alcohols and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.
Answer:
Experiment: Fix two nails on the cork and keep this in 100 ml beaker. Two nails are fixed to 6 volt battery, bulb and switch. Then pour some dilute HCl in the beaker and switch on the current. Repeat the experiment separately with glucose and alcohol solutions.
Observation: Bulb glows in HCl solution but do not glows in glucose solution.
Result: HCl ➝ H+ and Cl- ions.
These ions conduct electricity and bulb glows.
By this experiment we conclude that All acids contain Hydrogen.

Question 7.
Why does distilled water not conduct electricity, whereas rainwater does?
Answer:
Distilled water cannot conduct electricity because it does not contain ions while rainwater conducts electricity as it contains ions due to the presence of dissolved salts in it.

Question 8.
Why do acids not show acidic behavior in the absence of water?
Answer:
Acids do not show acidic property in the absence of water. Because Hydrogen ions dissociates in presence of water. Hydrogen ions are responsible for acidic nature.

Question 9.
Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is
(a) Neutral?
(b) Strongly alkaline?
(c) Strongly acidic?
(d) Weakly acidic?
(e) Weakly alkaline?
Arrange the pH in increasing order of hydrogen-ion concentration.
Answer:
a) Neutral ➝ solution D ➝ pH value of pH is 7.
b) strongly alkaline ➝ solution C ➝ pH is 11
c) strongly acidic ➝ solution B ➝ pH is 1
d) weakly acidic ➝ solution A ➝ pH is 4
e) weakly alkaline ➝ solution E —> pH is 9
We can arrange the pH in increasing order of hydrogen ion concentration as 11 < 9 <7 <4<1

MP Board Solutions

Question 10.
Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. Amount and concentration taken for both the acids are same. In which test tube will the fizzing
occur more vigorously and why?
Answer:
The fizzing will occur strongly in test tube A, in which hydrochloric acid (HCl) is added. This is because HCl is a stronger acid than CH3COOH and therefore, produces hydrogen gas at a faster speed due to which fizzing occurs.

Question 11.
Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain your answer.
Answer:
pH value of fresh milk is 6, but when it converts into curd value of pH decreases because curd is acidic. Hence this value is becoming less.

Question 12.
A milkman adds a very small amount of baking soda to fresh milk.

  1. Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
  2. Why does this milk take a long time to set as curd?

Answer:

  1. The milkman shifts the pH of the fresh milk from 6 to slightly alkaline because, in alkaline condition, milk does not set as curd easily. Hence, it does not get spoiled for longer period of time, in which he can sell it to make a profit.
  2. Since this milk is slightly basic than usual milk, acids produced to set the curd are neutralised by the base. Therefore, it takes a longer time for the curd to set which is usually acidic.

Question 13.
Plaster of Paris should be stored in a moisture-proof container. Explain why?
Answer:
The Plaster of Paris should be stored in a moisture-proof container as it absorbs water from moisture and turns into a hard substance (Gypsum) as shown in the following chemical equation:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 5

Question 14.
What is a neutralisation reaction? Give two examples.
Answer:
The reaction between an acid a base to give salt and water is known as a neutralisation reaction.
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 6

Question 15.
Give two important uses of washing soda and baking soda.
Answer:
1. Washing Soda:
(a) This is used in glass, soap and paper industries,
(b) It is used for removing permanent hardness of water.

2. Baking Soda:
(a) This is used cooking mixture of Baking soda and acid (tartaric acid – weak acid) is called Baking powder. When it is heated or combined with water. CO2 is evolved and soften the bread.
(b) It is also used in soda-acid fire extinguishers.

MP Board Class 10th Science Chapter 2 Additional Important Questions

MP Board Class 10th Science Chapter 2 Multiple Choice Questions

Question 1.
The range of a pH scale is:
(a) 1 – 10
(b) 1 – 100
(c) 0 – 14
(d) 1 – 14
Answer:
(c) 0 – 14

Question 2.
pH is defined as:
(a) The logarithm of hydrogen ion concentration
(b) The negative logarithm of hydrogen ion concentration
(c) Hydrogen ion concentration
(d) None of the above
Answer:
(a) The logarithm of hydrogen ion concentration

MP Board Solutions

Question 3.
Which of the following solution will have pH = 7?
(a) Tea
(b) The salt solution in distilled water
(c) Hydrochloric acid solution
(d) Water distilled with chlorine gas.
Answer:
(b) The salt solution in distilled water

Question 4.
Which colour indicate neutral solution on a pH paper?
(a) Brown
(b) Green
(c) Purple
(d) White or transparent
Answer:
(b) Green

Question 5.
A solution is acidic if:
(a) it releases H+ ions in the solution.
(b) it has a pH of less than 7.
(c) it has dark red, orange or greenish-yellow colour on a pH paper.
(d) all of the above.
Answer:
(d) all of the above.

Question 6.
Which of the following solutions will have pH < 7?
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 7
Choose correct combination:
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) All of the above.
Answer:
(b) (ii) and (iii)

Question 7.
“p” in pH stands for:
(a) Phosphorus
(b) Potenz
(c) Potential
(d) Polarity
Answer:
(b) Potenz

Question 8.
Four different jars A, B, C, D contains hydrochloric acid, black coffee, ammonia and soap solution. Choose the order of decreasing acidic strength.
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 8
(a) A > B > C > D
(b) B > C > A > D
(c) D > C > B > A
(d) D = C > B > A
Answer:
(a) A > B > C > D

Question 9.
How can we find the pH of a solution?
(a) By dipping pH paper in it.
(b) By dropping some solution over pH paper.
(c) By heating pH paper in vapours of solution.
(d) By pouring all the solution over pH paper.
Answer:
(a) By dipping pH paper in it.

Question 10.
In a class, while doing practical on different solutions, four students give their observations. Which student/s has/ve given a correct explanation if their observation is as follows?
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 9
Choose the correct combination of students with wrong observations:
(a) A and B
(b) C and D
(c) A, B, C
(d) All students
Answer:
(b) C and D

Question 11.
Lemon juice gives orange colour over pH paper. What is its nature?
(a) Strong Acid
(b) Basic
(c) Neutral
(d) Moderate acid
Answer:
(a) Strong Acid

Question 12.
Pure water has a pH = 7, while distilled water has pH = 8 – 10, it represents that distilled water is:
(a) Slightly basic
(b) Strong base
(c) Mild acid
(d) Strong acid
Answer:
(a) Slightly basic

Question 13.
On a pH paper, pH values of 1 and 8 are represented by colours:
(a) Yellow and Orange
(b) Purple and Greenish
(c) Red and Bluish Green
(d) Green and Red
Answer:
(c) Red and Bluish Green

Question 14.
Which of the following acids gives a dark red colour?
(a) Lemon juice
(b) Hydrochloric acid
(c) Acetic acid
(d) Nitric acid
Answer:
(b) Hydrochloric acid

Question 15.
How pOH can by represented?
(a) -Log [H+] = pOH
(b) -Log [H] = pOH
(c) -Log [pH] = pOH
(d) -Log [OH] = pOH
Answer:
(d) -Log [OH] = pOH

Question 16.
If [H+] is 1.0 × 10-9 mole, what will be pH of solution?
(a) 10-9
(b) 1
(c) 9
(d) -9
Answer:
(c) 9

Question 17.
What is the nature of citric acid?
(a) Basic
(b) Acidic
(c) Neutral
(d) Both a and b
Answer:
(b) Acidic

Question 18.
What is the nature of Sodium Hydroxide?
(a) Basic
(b) Acidic
(c) Neutral
(d) Unpredictable
Answer:
(a) Basic

Question 19.
pH > 7 represents?
(a) Basic solutions
(b) Acidic solutions
(c) Neutral solution
(d) All
Answer:
(a) Basic solutions

Question 20.
pH < 7 represents?
(a) Basic solutions
(b) Acidic solutions
(c) Neutral solution
(d) All
Answer:
(b) Acidic solutions

Question 21.
Hydrogen ion concentration for pure water is:
(a) 7
(b) 10-7
(c) 10-7 mole/litre
(d) 107 moles/litre
Answer:
(c) 10-7 mole/litre

MP Board Class 10th Science Chapter 2 Very Short Answer Type Questions

Question 1.
How can pH be represented using log?
Answer:
pH = – log [H+].

Question 2.
What is the range of pH on pH paper?
Answer:
0 – 14.

Question 3.
What is the pH of a strong acid?
Answer:
0 – 2.

Question 4.
Why is water neutral?
Answer:
On dissociation, water has equal numbers of H+ and OH ions. So, it does not go through any change and remains neutral.

Question 5.
What is the pH of concentric HCl?
Answer:
1 – 2.

Question 6.
What will be the colour of pH paper when coffee is poured over it?
Answer:
Reddish as it is slightly acidic in nature.

Question 7.
Which is more acidic-lemon juice or baking powder?
Answer:
Lemon juice.

Question 8.
What is the best medium to check any chemical’s nature?
Answer:
Water.

Question 9.
What is the universal solvent?
Answer:
Aqua regia.

Question 10.
What kind of reactions are neutralisation reactions?
Answer:
Any reaction between an acid and a base to form salt and water is called neutralisation reaction.

Question 11.
Which solution is considered to be neutral?
Answer:
Solutions with no acidity or alkalinity are neutral. Acids and bases are present in equal amounts.

MP Board Solutions

Question 12.
Write the formula of brine and bleaching powder.
Answer:
NaCl and CaOCl2.

Question 13.
Name two products which we can be obtained by chemical processing of common salt.
Answer:
Baking soda and bleaching powder.

Question 14.
What is the common name of sodium hydrogen carbonate?
Answer:
Baking soda.

Question 15.
Write the formula for washing soda.
Answer:
Na2CO3.10H2O.

Question 16.
What is the source of naturally occurring acid lactic acid?
Answer:
Curd.

Question 17.
Which acid is present in tomato?
Answer:
Oxalic acid.

Question 18.
Name two olfactory indicators.
Answer:
Vanilla and clove.

Question 19.
What is the colour of methyl orange in acidic solution?
Answer:
Red.

Question 20.
What is the colour of phenolphthalein in basic medium?
Answer:
Pink.

MP Board Class 10th Science Chapter 2 Short Answer Type Questions

Question 1.
How acids are different from bases when dissolved in water?
Answer:
Acids on dissolving in water produce H+ ions while the base produces OHions.

Question 2.
Name two indicators and write their colour in different mediums.

Name of indicator Colour in acidic medium Colour in basic medium
Methyl Orange Red Yellow Pink
Phenolphthalein Colourless Pink

Question 3.
Name any three hydrated salts.
Answer:

  1. Barium chloride, BaCl2. 2H2O.
  2. Copper sulphate, CuSO4. 5H2O.
  3. Ferrous sulphate, FeSO4. 6H2O.

Question 4.
Give an equation of neutralisation reaction.
Answer:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 10

Question 5.
What causes acidity in our body? How can it be cured?
Answer:
Our stomach produces hydrochloric acid which helps in digestion of food. During indigestion, the stomach produces too much acid and this causes pain and irritation. This can be cured by using bases called antacids.

Question 6.
What is the result of the reaction between an acid and a metal?
Answer:
Corresponding salt is formed with the evolution of hydrogen gas when a metal reacts with acid.

Question 7.
Write two important uses of pH in everyday life. Also, give an example.
Answer:
pH balance and its particular range of maintenance are very important in nature because it affects animal and plant life very much.

For example:

  1. Curd formation: Atmospheric bacteria change the pH of milk which causes the curd formation.
  2. Aids in digestion: Slight acidic conditions in the stomach due to the presence of hydrochloric acid aids in the digestion of food.

Question 8.
Give examples of two acids and bases present in nature.
Answer:

  1. Acids: Citric acid, acetic acid.
  2. Bases: Calcium carbonate, sodium hydroxide.

Question 9.
Discuss the various types of salts.
Answer:
There are three types of salts:

  1. Neutral salts: Salts formed by the mixing of strong acid and strong base, e.g., NaCl, K2SO4 etc.
  2. Acidic salts: Salts formed by the mixing of a strong acid and weak base e.g., NH4Cl, CaSO4.
  3. Basic salts: Salts formed by the mixing of a strong base and weak acid e.g., Na2CO3, CH3COONa etc.

Question 10.
Common salt acts as raw material for many important daily use chemicals. Name some of them and also write their chemical formula.
Answer:
Sodium hydroxide (NaOH), Baking Soda (NaHCO3), Washing soda (Na2CO3. 10H2O) etc.

Question 11.
What are the products of Chlor-alkali process?
Answer:
The products of Chlor-alkali process are chlorine and sodium hydroxide.

Question 12.
Name two uses of each of the given salts:

  1. Bleaching powder
  2. Baking soda

Answer:
Use of given salts are:
1. Bleaching powder:

  • It is used as an oxidising agent in chemical industries.
  • It is used for disinfecting water to make it free of germs.

2. Baking soda:

  • It is used in soda acid fire extinguishers.
  • It is an ingredient in antacids.

Question 13.
What is the water of crystallisation?
Answer:
The water of crystallisation is the fixed number of water molecules present in one formula unit of salt.

Question 14.
Give reaction to show the formation of sodium zincate?
Answer:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 25

Question 15.
Name the products of electrolysis of brine and also give on use of each.
Answer:
Chlorine gas, H2 gas, and sodium hydroxide are the products of electrolysis of brine:

  1. Use of chlorine gas: It is used as a disinfectant.
  2. Use of H2 gas: It is used in the manufacture of ammonia.
  3. Use of sodium hydroxide: It is used for the manufacture of soaps and detergents.

MP Board Class 10th Science Chapter 2 Long Answer Type Questions

Question 1.
Discuss the nature of the solution and its type in brief and also explain the strength of a solution.
Answer:
Nature of the solution:
When a solute is dissolved solvent (generally water), it shows different kind of nature with regard to its reactivity and solubility. On the basis of removal of H+ ion or OH the solution is formed. The types of solutions are divided as follows:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 11
Strength of solution is determined by the,

  1. Speed of reactivity i.e., how fast the ions are found dissociated.
  2. Amount of ions (H+ or OH ) released or their ion concentration.

Question 2.
Give one example in each case:
(a) a weak mineral acid.
(b) a base which is not an alkali.
(c) a hydrogen-containing compound which is not an acid.
(d) a basic oxide soluble in water.
(e) a basic oxide insoluble in water.
Answer:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 12

MP Board Class 10th Science Chapter 2 Textbook Activities

Class 10 Science Activity 2.1 Page No. 18

  1. Collect the following solutions from the science laboratory – hydrochloric acid (HCl), sulphuric acid (H2SO4), nitric acid (HNO3), acetic acid (CH3COOH), sodium hydroxide (NaOH), calcium hydroxide (Ca(OH)2], potassium hydroxide (KOH), magnesium hydroxide [Mg(OH)2] and ammonium hydroxide (NH4OH).
  2. Put a drop of each of the above solutions on a watch-glass one by one and test with a drop of the indicators shown in the table.
  3. What change in colour did you observe with red litmus, blue litmus, phenolphthalein and methyl orange solutions for each of the solutions taken?
  4. Tabulate your observations in the table.

Result:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 13

Class 10 Science Activity 2.2 Page No. 18,19

  1. Take some finely chopped onions in a plastic bag along with some strips of clean cloth. Tie up the bag tightly and leave overnight in the fridge. The cloth strips can now be used to test for acids and bases.
  2. Take two of these cloth strips and check their odour.
  3. Keep them on a clean surface and put a few drops of dilute HCl solution on one strip and a few drops of dilute NaOH solution on the other.
  4. Rinse both cloth strips with water and again check their odour.
  5. Note your observations.
  6. Now take some dilute vanilla essence and clove oil and check their odour.
  7. Take some dilute HCl solution in one test tube and dilute NaOH solution in another. Add a few drops of dilute vanilla essence to both test tubes and shake well. Check the odour once again and record changes in odour, if any.
  8. Similarly, test the change in the odour of clove oil with dilute HCl and dilute NaOH solution and record your observations.

Observations:

  1. On putting the cloth strip into dilute.HCl solution, the red colour of cloth strip changes to pale red.
  2. On putting the cloth strip into NaOH solution, the red colour of strip changes to green in colour.

Odour test:

  1. Add vanilla essence in dilute NaOH.
  2. Add vanilla essence in dilute HCl.
  3. Add clove oil in to dilute HCl.
  4. Add clove oil in dilute NaOH.

Result:

  1. No smell found.
  2. The smell of vanilla exists.
  3. The smell of clove present.
  4. The smell of clove exists.

Class 10 Science Activity 2.3 Page No. 19,20

Caution:

  1. This activity needs the teacher’s assistance.
  2. Set the apparatus as shown in Figure.
  3. Take about 5 ml of dilute sulphuric acid in a test tube and add a few pieces of zinc granules to it.
  4. What do you observe on the surface of zinc granules?
  5. Pass the gas being evolved through the soap solution.
  6. Why are bubbles formed in the soap solution?
  7. Take a burning candle near a gas-filled bubble.
  8. What do you observe?
  9. Repeat this Activity with some more acids like HCl, HNO3 and CH3COOH.
  10. Are the observations in all the cases the same or different?

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 14

Observations:

  1. 5 ml of dilute sulphuric acid + zinc granules → On the surface of zinc granules + bubbles of hydrogen gas are formed.
  2. On passing the gas evolved through a soap solution → bubbles are formed due to low surface tension of soap solution. On taking a burning candle near a gas-filled bubbles → gas burns with a pop sound.
  3. All other acids HCl, HNO3 and CH3COOH show the same observation.

Class 10 Science Activity 2.4 Page No. 20

  1. Place a few pieces of granulated zinc metal in a test tube.
  2. Add 2 ml of sodium hydroxide solution and warm the contents of the test tube.
  3. This activity needs the teacher’s assistance.
  4. Set the apparatus as shown in Figure.
  5. Take about 5 ml of dilute sulphuric acid in a test tube and add a few pieces of zinc granules to it.
  6. What do you observe on the surface of zinc granules?
  7. Pass the gas being evolved through the soap solution.
  8. Why are bubbles formed in the soap solution?
  9. Take a burning candle near a gas-filled bubble.
  10. What do you observe?
  11. Repeat this Activity with some more acids like HCl, HNO3 and CH3COOH.
  12. Are the observations in all the cases the same or different?

Observations:
Reaction:
2NaOH + Zn → Na2ZnO3 + H2

Conclusion:
Bubbles of hydrogen gas are formed.

Class 10 Science Activity 2.5 Page No. 20

  1. Take two test tubes, label them as A and B.
  2. Take about 0.5 g of sodium carbonate (Na2CO3) in test tube A and about 0.5 g of sodium hydrogen carbonate (NaHCO3) in test tube B.
  3. Add about 2 ml of dilute HCl to both the test tubes.
  4. What do you observe?
  5. Pass the gas produced in each case through lime water (calcium hydroxide solution) as shown below and record your observations.

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 15

Observations:
Test Tube A:
Reaction:
Na2CO3(s) + 2HCl(aq) → 2NaCl(aq) + H2O(l) +CO2(g)

Test Tube B:
Reaction:
NaHCO3(s) + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)
On passing CO2 gas through lime water it turns milky because insoluble white precipitate of CaCO3 is formed as shown below:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 16
On passing excess gas through lime water, it becomes colourless.
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 17

Class 10 Science Activity 2.6 Page No. 21

  1. Take about 2 ml of dilute NaOH solution in a test tube and add two drops of phenolphthalein solution.
  2. What is the colour of the solution?
  3. Add dilute HCl solution to the above solution drop by drop.
  4. Is there any colour change for the reaction mixture?
  5. Why did the colour of phenolphthalein change after the addition of an acid?
  6. Now add a few drops of NaOH to the above mixture.
  7. Does the pink colour of phenolphthalein reappear?
  8. Why do you think this has happened?

Observations:

  1. Add 2 drops of phenolphthalein solution into NaOH solution → colour of the solution is pink.
  2. Now add dilute HCl solution drop by drop.
  3. Now, reaction mixture changes to colourless.
  4. This is because neutralisation of HCl and NaOH takes place.
  5. Now, add NaOH (few drops) → Pink colour reappears.

Class 10 Science Activity 2.7 Page No. 21

  1. Take a small amount of copper oxide in a beaker and add dilute hydrochloric acid slowly while stirring.
  2. Note the colour of the solution. What has happened to the copper oxide?

Observations:

  1. Add dilute HCl to copper oxide solution:
  2. Colour of the solution turns into green and CuCl2 dissolves.
  3. The blue-green colour formed due to formation of copper (II) chloride,
    CuO + 2HCl → CuCl + H2O

Class 10 Science Activity 2.8 Page No. 22

  1. Take solutions of glucose, alcohol, hydrochloric acid, sulphuric acid etc.
  2. Fix two nails on a cork and place the cork in a 100 ml beaker.
  3. Connect the nails to the two terminals of a 6-volt battery through a bulb and a switch, as shown in Figure.

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 18

  1. Now pour some dilute HCl in the beaker and switch on the current. Repeat with dilute sulphuric acid.
  2. What do you observe?
  3. Repeat the experiment separately with glucose and alcohol solutions.
  4. What do you observe now?
  5. Does the bulb glow in all cases?

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 19

Class 10 Science Activity 2.9 Page No. 23

  1. Take about 1g solid NaCl in a clean and dry test tube and set up the apparatus as shown in Figure.
  2. Add some concentrated sulphuric acid to the test tube.
  3. What do you observe? Is there a gas coming out of the delivery tube?
  4. Test the gas evolved successively with dry and wet blue litmus paper.
  5. In which case does the litmus paper change colour?
  6. On the basis of the above Activity, what do you infer about the acidic character of:
    • Dry HCl gas?
    • HCl solution?

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 20

Note to teachers:
If the climate is very humid, you will have to pass the gas produced through a guard tube (drying tube) containing calcium chloride to dry the gas.

Observations:

  1. Adding concentrated H2SO4 to test tube containing NaCl leads to the production of HCl gas. Now, testing this gas with litmus paper following were recorded,
  2. HCl gas passes → Colour change
  3. Dry litmus paper → No change
  4. Wet litmus paper → Blue litmus turns red

Thus, only HCl solution release H+ ions and acidic property exist due to H+ ions.

Class 10 Science Activity 2.10 Page No. 24

  1. Take 10 ml water in a beaker.
  2. Add a few drops of concentrated H2SO4 to it and swirl the beaker slowly.
  3. Touch the base of the beaker.
  4. Is there a change in temperature?
  5. Is this an exothermic or endothermic process?
  6. Repeat the above Activity with sodium hydroxide pellets and record your observations.

Observations:

  1. Add a few drops of concentrated H2SO4 to the water in a beaker → it becomes hot as the reaction is highly exothermic.
  2. Now, add NaOH pellets to water → the beaker becomes hot, the reaction is exothermic.

Class 10 Science Activity 2.11 Page No. 26

  1. Test the pH values of solutions given in the table.
  2. Record your observations.
  3. What is the nature of each substance on the basis of your observations?

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 21

Class 10 Science Activity 2.12 Page No. 27

  1. Put about 2 g soil in a test tube and add 5 mL water to it.
  2. Shake the contents of the test tube.
  3. Filter the contents and collect the filtrate in a test tube.
  4. Check the pH of this filtrate with the help of universal indicator paper.
  5. What can you conclude about the ideal soil pH for the growth of plants in your region?

Observations:
MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 22
Class 10 Science Activity 2.13 Page No. 28,29

  1. Write the chemical formulae of the salts given below.
    Potassium sulphate, sodium sulphate, calcium sulphate. magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium chloride.
  2. Identify the acids and bases from which the above salts may be obtained.
  3. Salts having the same positive or negative radicals are said to belong to a family. For example. NaCl and Na2SO4 belong to the family of sodium salts. Similarly, NaCl and KCl belong to the family of chloride salts. How many families can you identify among the salts given in this Activity?

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 23

Class 10 Science Activity 2.14 Page No. 28

  1. Collect the following salt samples – sodium chloride, potassium nitrate, aluminium chloride, zinc sulphate, copper sulphate, sodium acetate, sodium carbonate and sodium hydrogen carbonate (some other salts available can also be taken).
  2. Check their solubility in water (use distilled water only).
  3. Check the action of these solutions on litmus and find the pH using a pH paper.
  4. Which of the salts are acidic, basic or neutral?
  5. Identify the acid or base used to form the salt.
  6. Report your observations in the table.

MP Board Class 10th Science Solutions Chapter 2 Acids, Bases and Salts 24

Class 10 Science Activity 2.15 Page No. 32

  1. Heat a few crystals of copper sulphate in a dry boiling tube.
  2. What is the colour of the copper sulphate after heating?
  3. Do you notice water droplets in the boiling tube? Where have these come from?
  4. Add 2-3 drops of water on the sample of copper sulphate obtained after heating
  5. What do you observe? Is the blue colour of copper sulphate restored?

Observations:

  1. On heating blue crystals of copper sulphate, it becomes colourless or white and few drops of water are seen on test tube due to condensation of water of crystallisation.
  2. On adding few drops of water to heated anhydrous copper sulphate, the blue colour of copper sulphate reappear.

MP Board Class 10th Science Solutions