CBSE Class 10 Science Question Paper Solved 2021 Set B

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

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)

More Study Material

Previous Year Question Paper Science Class 10

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. If you do CBSE Class 10 Science Question Paper Solved 2021 Set B for Class 10 Science you will easily understand the way examination question papers are set by teachers.

Class 10 Science Previous Year Question Papers

The past year question papers CBSE Class 10 Science Question Paper Solved 2021 Set B covers all the topics which have been suggested by CBSE in their Class 10 Science syllabus for the current year. 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.

Class 10 Science Model Question Paper Pdf Download

We have provided links above of CBSE Class 10 Science Question Paper Solved 2021 Set B in Pdf format so that you can just click the links and easily download the papers with answers. On studiestoday, we have also provided a download and print option for all CBSE Class 10 Science last year papers and Sample Papers for Class 10 Science to make it more easy for students. You can download CBSE Class 10 Science Previous Year Question Papers and Class 10 Science Sample Papers in PDF absolutely free of cost.

Science Previous Year Question Papers Class 10 with Solutions

We have provided CBSE Class 10 Science Question Paper Solved 2021 Set B with solutions. You will be able to understand the type of answers which you should write in Class 10 Science exams to score good marks. 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. This way you will be able to identify your weak areas and also understand how the teachers of Class 10 Science set their questions in the exams.

CBSE Class 10 Science Previous Year Question Papers with solutions

We have provided the last 10 years Class 10 Science Question Papers. Students who want to practice question papers from all previous years can easily get them on studiestoday. We are the leading website in India from which you can download all the latest Class 10 Science study material for free as per the CBSE syllabus for Class 10 Science for the current academic year.
 

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Can I download the previous year Question Papers of Class 10 Science in Pdf

Yes, you can click on the links above and download Question Papers in PDFs for Class 10 for Science. Click on above link to download CBSE Class 10 Science Question Paper Solved 2021 Set B

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Yes, the CBSE Class 10 Science Question Paper Solved 2021 Set B issued for Class 10 Science have been made available here for latest academic session

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