# CBSE Class 10 Science Sample Paper Solved 2021 Set C

Read and download PDF of CBSE Class 10 Science Sample Paper Solved 2021 Set C designed as per the latest curriculum and examination pattern for Class 10 issued by CBSE, NCERT and KVS. The latest Class 10 Science Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Science Class 10 which they need to study more to get better marks in Class 10 exams. After solving these guess papers also refer to solved Class 10 Science Question Papers available on our website to build strong understanding of the subject

## Sample Paper for Class 10 Science Pdf

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

### Science Class 10 Sample Paper

SECTION A

1. Name the sex hormone secreted by male and female sex organs in human beings.

2. What is Ganga action plan?

SECTION B

3. List any two measures that you suggest for better management of water.

4. Explain how electrical energy is generated in a nuclear reactor

OR

What is a solar cell panel? Mention one advantage and disadvantage of using solar cooker.

5. 1. Write any two factors that could lead to the rise of a new species.

2. Give an example of characteristics being used to determine how close two species are in evolutionary terms.

SECTION C

6. Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 4Ω in series with a combination of two resistors (8Ω each) in parallel and a voltmeter across parallel combination. Each of them can withstand a maximum power of 32W without melting. Calculate the total current that flows through this circuit.

7. An object of height 12cm is placed before a concave mirror of focal length 20cm so that a real image is formed at a distance 50 cm from it. Find the position of the object. What will be the height of the image formed? Draw the respective ray diagram.

8. a) Describe with the help of a diagram, an activity to show that a straight conductor carrying current produces a magnetic field around it.

b) Mention the rule which determines the direction of magnetic field thus produced.

OR

a) Define electromagnetic induction.

b) Explain with the help of a diagram how current is induced in a solenoid using bar magnet.

9. a) Draw a labelled ray diagram showing refraction of light through a rectangular glass slab.

b) What are the factors on which lateral displacement depend?

10. a) Account for the following:

i) Ionic compounds have high melting points.

ii) Carbon cannot form C4+ or C4- ions.

b) What is an alloy? What are the components of

i) stainless steel   ii) solder

11. a) When is a chemical reaction categorised as a precipitation reaction? Explain with one example in the form of a balanced equation.

b) Explain why white silver chloride turns grey when exposed to sunlight. Give balanced chemical equation for the reaction.

OR

a) The pH values of four solutions A, B, C and D as determined by a student are 3, 7,12 and 8 respectively.

i) Identify the most acidic and most basic solutions.

ii) Arrange the above solutions in the decreasing order of the hydrogen ion concentration.

b) What is the common name of (i) NaHCO3 and (ii) Na2CO3.10H2O

12. a) In the formation of compound between two elements A & B, A loses 2 electrons and B gains one electron.

i) What is the nature of chemical bond between A and B?

ii) Give the formula of the compound between A and B?

b) Explain why common salt being an ionic solid is unable to conduct electricity.

c) What happens when water is mixed with Plaster of Paris? Give the balanced equation for the reaction.

13. What can you as an individual do to reduce your consumption of the various natural resources?

14. a) Give any two advantages of vegetative propagation.

b) What are sexually transmitted diseases? Give examples for bacterial and viral diseases.

OR

a) What are the functions performed by the testis in human beings?

b) What is placenta? Write two functions of the same.

15. a) How will you estimate the age of the fossils?

b) What is meant by evolution? Mention the tools which help in tracing evolutionary relationship in human being?

SECTION D

16. a) Name a device which converts mechanical energy into electrical energy.

b) Explain the principle and working of this device with the help of a labelled diagram.

OR

a) What is the function of earth wire?

b) Why is it necessary to earth metallic appliances?

c) With the help of a labelled diagram explain the working of a domestic electric circuit.

17. Shan needs a lens of power -4 D for correction of his vision.

a) Find the focal length of the lens and name the defect of vision.

b) What are the causes of this defect?

c) Also draw ray diagrams showing the ( i) defected eye and (ii) correction for this defect.

18. a) State the modern periodic law.

b) The position of five elements in the modern periodic table are given below.

i) What is the number of valence electrons in B?

ii) Which will have the smallest atomic radius?

iii) Which will be the most metallic?

iv) Which all can form basic oxides?

v) Which will show valency 3?

vi) Which will show the greatest tendency to gain electrons?

vii) What is the formula of compound between C and E?

OR

i) A tarnished copper vessel regains its shine when rubbed with lemon.

ii) An aqueous solution of salt is neutral but an aqueous solution of washing soda is basic.

iii) Rain water conducts electricity but distilled water does not.

b) Give the chemical name & formula of

i) Slaked lime  ii) Quick lime

19. a) The molecular formula of two organic compounds are C3H6 & C3H8.

i) Which of the two is likely to show addition reaction and why?

ii) Write a chemical reaction to show an addition reaction.

iii) Draw the structural formula of C3H6.

b) Complete the following reactions:

i) CH3CH2OH Alkaline KMnO4& Heat
→
→
ii) CH3COOH + CH3CH2OH Acid

20. a) Write any two differences between reflex action and walking.

b) Draw a neat diagram of reflex arc and label any four parts.

21. a) Give reason for the following

i) Lung alveoli are covered with blood capillaries.

ii) Wall of the trachea is supported with cartilaginous rings.

b) Due to some disease, acid secretion in the stomach is reduced in a man. How will this condition affect his digestion? Identify a secretion involved in digestion which is not an enzyme.

c) What is the role of saliva in the digestion of food?

OR

a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide in man and label any four parts.

b) Mention the role of valves in the heart.

c) Name the blood vessel that brings oxygenated blood to the heart.

## More Study Material

### Sample Paper Science Class 10

We hope you liked the above provided CBSE Class 10 Science Sample Paper Solved 2021 Set C. To get an understanding of the type of questions which were asked in exams, it is important for Class 10 students to refer to CBSE Class 10 Science Sample Paper Solved 2021 Set C that we have provided above. Students can download the Sample Paper for Class 10 Science which will be coming in the exams so that you can practise them and solve all types of questions that can be asked in exams. If you do CBSE Class 10 Science Sample Paper Solved 2021 Set C for Class 10 Science you will easily understand the way examination Sample Paper are set by teachers.

### Class 10 Science Sample Paper

The latest Sample Paper CBSE Class 10 Science Sample Paper Solved 2021 Set C covers all the topics which have been suggested by CBSE in their Class 10 Science syllabus for the current year. By doing CBSE Class 10 Science Sample Paper Solved 2021 Set C 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.

We have provided link above of CBSE Class 10 Science Sample Paper Solved 2021 Set C 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 latest Sample Papers for Class 10 Science to make it more easy for students. You can download CBSE Class 10 Science Sample Paper and Class 10 Science Question Papers in PDF absolutely free of cost.

#### Science Sample Paper Class 10 with Solutions

We have provided CBSE Class 10 Science Sample Paper Solved 2021 Set C 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 Sample Paper with solutions

We have provided the current year Class 10 Science Sample Paper. Students who want to practice Sample Paper 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.

Where can I download CBSE Class 10 Science Sample Paper Solved 2021 Set C in Pdf

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