CBSE Class 10 Science Question Paper Solved 2021 Set B

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Read and download CBSE Class 10 Science Question Paper Solved 2021 Set B designed as per the latest question paper pattern and Class 10 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 10 Science have been provided with solutions which will help students to assess their performance and find out topics in Science Class 10 which they need to improve to get better marks in Class 10 exams. After solving these last year papers also refer to solved Sample Papers for Class 10 Science available on our website to build strong understanding of the subject

Science Question Paper Class 10

Students can refer to the below Class 10 Science Question Paper designed to help students understand the pattern of questions that will be asked in Class 10 exams. Please download CBSE Class 10 Science Question Paper Solved 2021 Set B

Science Class 10 Question Paper

SECTION A
 
1 Which is the cell organelle present in guard cell is absent in epidermal cell? 
 
2 Why regeneration is not considered as same as reproduction in most organisms? 
 
3 Two elements X and Y have electronic configuration 2,8,1 and 2,8,7 respectively. Name the family to which X and Y belong and write the formula of the compound formed between them.
 
4 Write any two advantages and any two limitations of harnessing wind energy on a large scale. 
 
5 An electric iron has a rating of 750 W ,220 V. Calculate the
 
(i) current flowing through it.
 
(ii) Its resistance when in use.
 
6 An object of height 5 cm is placed perpendicular to the principal axis of a concave lens of focal length 10 cm.If the distance of the object from the lens is 20 cm, determine the position and magnification of the image.
 
7 (i) What are the values of (a) far point and (b) near point of vision for a normal adult person?
 
(ii) A student has difficulty in reading the black board while sitting at the back seats. What could be this defect of vision?
 
(iii) Draw a ray diagram to illustrate this defect.
 
8 Copper electrode is used in the refining of copper from copper nitrate solution.
 
a) Name the process and the impurities obtained.
 
b) Can silver electrode be used in the refining of copper from copper nitrate solution. Justify your answer.
 
9 a) State Mendeleev‟s Periodic law.
 
b) What were the two criteria used by Mendeleev in making the periodic table?
 
c) Why there‟s no mention of noble gases in Mendeleev‟s Periodic table?
 
10 Give reason for the following: (i) Glottis is covered by epiglottis, (ii) Lung alveoli are covered with blood capillaries, (iii) The wall of trachea is supported by cartilage rings.
                                        OR
List three differences between arteries and veins.
 
11 (a) Name the part of brain which controls (i) voluntary action, (ii) involuntary action.
 
(b) What is the significance of the peripheral nervous system? Name the components of this nervous system and distinguish between the origins of the two.
 
12 Name the device that converts mechanical energy into electrical energy. Draw the labelled diagram and write the principle of working of this device.
                                       OR
i) What is the function of earth wire in domestic electrical circuits?
 
ii) Explain what is short circuiting an electric supply.
 
iii) What is the usual current rating of the fuse wire in the line to feed (a) Lights and fans? (b) Appliances of 2kW or more power?
 
13 a) The pH of the solutions A,B&C are 7, 2,6.5 respectively. Arrange them in the increasing order of the H+ ion concentration.
 
b) How do chocolate and sweets effect the pH in our mouth and what is the role of the toothpaste in preventing tooth decay?
                                       OR
a) What is water of crystallization?
 
b) „The water of crystallization gives the salt crystals its colour‟. Explain with an example.
 
14 All the human races like Africans, Asians, Europeans, Americans and others might have evolved from a common ancestor. Provide a few evidences in support of this view.
 

Please click on below link to download CBSE Class 10 Science Question Paper Solved 2021 Set B

2022
CBSE Class 10 Science Question Paper 2022 Set B
CBSE Class 10 Science Question Paper 2022 Set C
CBSE Class 10 Science Question Paper 2022 Set D
CBSE Class 10 Science Question Paper 2022 Set E
CBSE Class 10 Science Question Paper Solved 2022 Set A
2021
CBSE Class 10 Science Question Paper Solved 2021 Set A
CBSE Class 10 Science Question Paper Solved 2021 Set B
CBSE Class 10 Science Question Paper Solved 2021 Set C
2020
CBSE Class 10 Science Boards 2020 Question Paper Solved Set A
CBSE Class 10 Science Boards 2020 Question Paper Solved Set B
CBSE Class 10 Science Boards 2020 Question Paper Solved Set C
CBSE Class 10 Science Boards 2020 Question Paper Solved Set D
CBSE Class 10 Science Boards 2020 Question Paper Solved Set E
CBSE Class 10 Science Compartment Question Paper Solved 2020 Set A
CBSE Class 10 Science Compartment Question Paper Solved 2020 Set B
CBSE Class 10 Science Question Paper 2020 Set A
CBSE Class 10 Science Question Paper Solved 2020 Set A
CBSE Class 10 Science Question Paper Solved 2020 Set B
CBSE Class 10 Science Question Paper Solved 2020 Set C
CBSE Class 10 Science Question Paper Solved 2020 Set D
2019
CBSE Class 10 Science Punjabi Question Paper Solved 2019 Set A
CBSE Class 10 Science Punjabi Question Paper Solved 2019 Set B
CBSE Class 10 Science Punjabi Question Paper Solved 2019 Set C
CBSE Class 10 Science Question Paper Solved 2019 Set A
CBSE Class 10 Science Question Paper Solved 2019 Set B
CBSE Class 10 Science Question Paper Solved 2019 Set C
CBSE Class 10 Science Question Paper Solved 2019 Set D
CBSE Class 10 Science Question Paper Solved 2019 Set E
CBSE Class 10 Science Question Paper Solved 2019 Set F
CBSE Class 10 Science Question Paper Solved 2019 Set G
CBSE Class 10 Science Question Paper Solved 2019 Set H
CBSE Class 10 Science Question Paper Solved 2019 Set I
CBSE Class 10 Science Question Paper Solved 2019 Set J
CBSE Class 10 Science Question Paper Solved 2019 Set K
CBSE Class 10 Science Question Paper Solved 2019 Set L
CBSE Class 10 Science Question Paper Solved 2019 Set M
CBSE Class 10 Science Question Paper Solved 2019 Set N
CBSE Class 10 Science Question Paper Solved 2019 Set O
CBSE Class 10 Science Urdu Question Paper Solved 2019 Set A
CBSE Class 10 Science Urdu Question Paper Solved 2019 Set B
CBSE Class 10 Science Urdu Question Paper Solved 2019 Set C
2018
CBSE Class 10 Science Board Question Paper Solved 2018 Set 1
CBSE Class 10 Science Board Question Paper Solved 2018 Set 2
CBSE Class 10 Science Board Question Paper Solved 2018 Set 3
CBSE Class 10 Science Compartment Question Paper Solved 2018 Set 1
CBSE Class 10 Science Compartment Question Paper Solved 2018 Set 2
CBSE Class 10 Science Compartment Question Paper Solved 2018 Set 3
2017
CBSE Class 10 Science Question Paper All India 2017 Set 1
CBSE Class 10 Science Question Paper All India 2017 Set 2
CBSE Class 10 Science Question Paper All India 2017 Set 3
CBSE Class 10 Science Question Paper Delhi 2017 Set 1
CBSE Class 10 Science Question Paper Delhi 2017 Set 2
CBSE Class 10 Science Question Paper Delhi 2017 Set 3
CBSE Class 10 Science Question Paper Foreign 2017 Set 1
CBSE Class 10 Science Question Paper Foreign 2017 Set 2
CBSE Class 10 Science Question Paper Foreign 2017 Set 3
CBSE Class 10 Science Question Paper NSQF 2017 Set 1
CBSE Class 10 Science Question Paper NSQF 2017 Set 2
CBSE Class 10 Science Question Paper NSQF 2017 Set 3
2016
CBSE Class 10 Science Question Paper SA2 2016 Set 1
CBSE Class 10 Science Question Paper SA2 2016 Set 1 - Delhi
CBSE Class 10 Science Question Paper SA2 2016 Set 1 - Foreign
CBSE Class 10 Science Question Paper SA2 2016 Set 2
CBSE Class 10 Science Question Paper SA2 2016 Set 2 - Delhi
CBSE Class 10 Science Question Paper SA2 2016 Set 2 - Foreign
CBSE Class 10 Science Question Paper SA2 2016 Set 3
CBSE Class 10 Science Question Paper SA2 2016 Set 3 - Delhi
CBSE Class 10 Science Question Paper SA2 2016 Set 3 - Foreign
2015
CBSE Class 10 Science Question Paper SA2 Set 1 2015 Delhi
CBSE Class 10 Science Question Paper SA2 Set 1 2015 Foreign
CBSE Class 10 Science Question Paper SA2 Set 1 2015 Outside Delhi
CBSE Class 10 Science Question Paper SA2 Set 2 2015 Delhi
CBSE Class 10 Science Question Paper SA2 Set 2 2015 Foreign
CBSE Class 10 Science Question Paper SA2 Set 3 2015 Delhi
CBSE Class 10 Science Question Paper SA2 Set 3 2015 Foreign
CBSE Class 10 Science Question Paper SA2 Set 3 2015 Outside Delhi
2014
CBSE Class 10 Science Question Paper 2014 Set 1 - Delhi
CBSE Class 10 Science Question Paper 2014 Set 1 - Foreign
CBSE Class 10 Science Question Paper 2014 Set 1 - Outside Delhi
CBSE Class 10 Science Question Paper 2014 Set 1 - Vocational
CBSE Class 10 Science Question Paper 2014 Set 2 - Delhi
CBSE Class 10 Science Question Paper 2014 Set 2 - Foreign
CBSE Class 10 Science Question Paper 2014 Set 2 - Outside Delhi
CBSE Class 10 Science Question Paper 2014 Set 2 - Vocational
CBSE Class 10 Science Question Paper 2014 Set 3 - Delhi
CBSE Class 10 Science Question Paper 2014 Set 3 - Outside Delhi
CBSE Class 10 Science Question Paper 2014 Set 3 - Outside Delhi 1
CBSE Class 10 Science Question Paper 2014 Set 3 - Vocational
CBSE Class 10 Science Question Paper SA1 2014
CBSE Class 10 Science Question Paper SA2 2014
2013
CBSE Class 10 Science Delhi Question Paper 2013 (1)
CBSE Class 10 Science Delhi Question Paper 2013 (2)
CBSE Class 10 Science Delhi Question Paper 2013 (3)
CBSE Class 10 Science Foreign Question Paper 2013 (1)
CBSE Class 10 Science Foreign Question Paper 2013 (2)
CBSE Class 10 Science Foreign Question Paper 2013 (3)
CBSE Class 10 Science Outside Delhi Question Paper 2013 (1)
CBSE Class 10 Science Outside Delhi Question Paper 2013 (2)
CBSE Class 10 Science Outside Delhi Question Paper 2013 (3)
CBSE Class 10 Science Question Paper SA1 2013
CBSE Class 10 Science Question Paper SA2 2013
CBSE Class X Science Board Question Paper 2013
CBSE Class X Science Urdu Board Question Paper 2013
2012
CBSE Class 10 Science Question Paper 2012 (1)
CBSE Class 10 Science Question Paper 2012 (2)
CBSE Class 10 Science Question Paper 2012 (3)
CBSE Class 10 Science Question Paper 2012 (4)
CBSE Class 10 Science Question Paper 2012 (5)
CBSE Class 10 Science Question Paper 2012 (6)
CBSE Class 10 Science Question Paper 2012 (7)
CBSE Class 10 Science Question Paper 2012 (8)
CBSE Class 10 Science Question Paper 2012 (9)
CBSE Class 10 Science Question Paper 2012 (10)
CBSE Class 10 Science Question Paper 2012 (11)
CBSE Class 10 Science Question Paper 2012 (12)
CBSE Class 10 Science Question Paper 2012 (13)
CBSE Class 10 Science Question Paper 2012 (14)
CBSE Class 10 Science Question Paper 2012 (15)
CBSE Class 10 Science Question Paper 2012 (16)
CBSE Class 10 Science Question Paper SA 2 2012 (1)
CBSE Class 10 Science Question Paper SA 2 2012 (2)
CBSE Class 10 Science Question Paper SA 2 2012 (3)
CBSE Class 10 Science Question Paper SA 2 2012 (4)
CBSE Class 10 Science Question Paper SA 2 2012 (5)
CBSE Class 10 Science Question Paper SA 2 2012 (6)
CBSE Class 10 Science Question Paper SA 2 2012 (7)
CBSE Class 10 Science Question Paper SA 2 2012 (8)
CBSE Class 10 Science Question Paper SA 2 2012 (9)
CBSE Class 10 Science Question Paper SA 2 2012 (10)
CBSE Class 10 Science Question Paper SA 2 2012 (11)
CBSE Class 10 Science Question Paper SA 2 2012 (12)
CBSE Class 10 Science Question Paper SA 2 2012 (13)
CBSE Class 10 Science Question Paper SA 2 2012 (14)
CBSE Class 10 Science Question Paper SA 2 2012 (15)
CBSE Class 10 Science Question Paper SA 2 2012 (16)
CBSE Class 10 Science Question Paper SA 2 2012 (17)
CBSE Class 10 Science Question Paper SA1 2012
CBSE Class 10 Science Question Paper SA2 2012 (1)
2011
CBSE Class 10 Science Question Paper SA 1 2011 (1)
CBSE Class 10 Science Question Paper SA 1 2011 (2)
CBSE Class 10 Science Question Paper SA 1 2011 (3)
CBSE Class 10 Science Question Paper SA 1 2011 (4)
CBSE Class 10 Science Question Paper SA 1 2011 (5)
CBSE Class 10 Science Question Paper SA 1 2011 (6)
CBSE Class 10 Science Question Paper SA 1 2011 (7)
CBSE Class 10 Science Question Paper SA 1 2011 (8)
CBSE Class 10 Science Question Paper SA 1 2011 (9)
CBSE Class 10 Science Question Paper SA 1 2011 (10)
CBSE Class 10 Science Question Paper SA 1 2011 (11)
CBSE Class 10 Science Question Paper SA 1 2011 (12)
CBSE Class 10 Science Question Paper SA 1 2011 (13)
CBSE Class 10 Science Question Paper SA 1 2011 (14)
CBSE Class 10 Science Question Paper SA 1 2011 (15)
CBSE Class 10 Science Question Paper SA 1 2011 (16)
CBSE Class 10 Science Question Paper SA1 2011 (1)
2010
CBSE Class 10 Science Question Paper SA1 2010 (1)
CBSE Class 10 Science Question Paper SA1 2010 (2)
CBSE Class 10 Science Question Paper SA1 2010 (3)
CBSE Class 10 Science Question Paper SA1 2010 (4)
CBSE Class 10 Science Question Paper SA1 2010 (5)
CBSE Class 10 Science Question Paper SA1 2010 (6)
CBSE Class 10 Science Question Paper SA1 2010 (7)
CBSE Class 10 Science Question Paper SA1 2010 (8)
CBSE Class 10 Science Question Paper SA2 2010 (1)
CBSE Class 10 Science Question Paper SA2 2010 (2)
CBSE Class 10 Science Question Paper SA2 2010 (3)
CBSE Class 10 Science Question Paper SA2 2010 (4)
CBSE Class 10 Science Question Paper SA2 2010 (5)
CBSE Class 10 Science Question Paper SA2 2010 (6)
CBSE Class 10 Science Question Paper SA2 2010 (7)
CBSE Class 10 Science Question Paper SA2 2010 (8)
2009
CBSE Class 10 Science Question Paper 2009 (1)
Science Question Paper 2009
2008
CBSE Class 10 Science Question Paper 2008
CBSE Class 10 Science Question Paper 2008 (1)
CBSE Class 10 Science Question Paper 2008 (2)
CBSE Class 10 Science Question Paper 2008 (3)
CBSE Class 10 Science Question Paper 2008 (4)
CBSE Class 10 Science Question Paper 2008 Answers
CBSE Class 10 Science Question Paper 2008 Answers(2)
CBSE Class 10 Science Question Paper 2008(2)
Science Question Paper 2008
2007
CBSE Class 10 Science Question Paper 2007 (1)
CBSE Class 10 Science Question Paper 2007 (2)
CBSE Class 10 Science Question Paper 2007 (3)
2006
CBSE Class 10 Science Question Paper 2006 (1)
CBSE Class 10 Science Question Paper 2006 (2)
CBSE Class 10 Science Question Paper 2006 (3)
CBSE Class 10 Science Question Paper 2006 (4)
2005
CBSE Class 10 Science Question Paper 2005 (1)
CBSE Class 10 Science Question Paper 2005 (2)
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CBSE Question Paper
CBSE Class 10 Science Question Paper
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Class 10 Science Question Paper pdf
CBSE Class 10 Science
Science Class 10 Question Paper
CBSE Class 10 Science Solved Question Paper
Previous Year Question Paper Class 10 Science

CBSE Class 10 Science Question Paper Solved 2021 Set B

We hope you liked the above provided CBSE Class 10 Science Question Paper Solved 2021 Set B. To get an understanding of the type of questions which were asked in previous year exams, it is important for Class 10 students to refer to CBSE Class 10 Science Question Paper Solved 2021 Set B that we have provided above. Students can download all the Question Papers for Class 10 Science which were issued in the exams so that you can practise them and solve all types of questions which have been asked till now. By doing all CBSE Class 10 Science Question Paper Solved 2021 Set B PYP (previous year papers) you will understand the regular questions and MCQ questions for Class 10 Science which are always asked and learn them so that you can get full marks in those questions. You can download CBSE Class 10 Science Previous Year Question Papers and Class 10 Science Sample Papers in PDF. You should attempt all the last year question paper for Class 10 and Class 10 Science MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.
 

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Yes, mock CBSE Class 10 Science Question Paper Solved 2021 Set B are available in multiple languages, including English, Hindi