CBSE Class 10 Science Question Paper 2021 Set 01 Solved

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Class 10 Science Solved Question Papers: CBSE Class 10 Science Question Paper 2021 Set 01 Solved

Explore authentic exam materials through the CBSE Class 10 Science Question Paper 2021 Set 01 Solved. Tailored for Class 10 learners, utilizing these Science previous year papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

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SECTION A
 
1 Name the cells that surround a stoma in leaf. 
 
2 How does Spirogyra reproduce? 
 
3 The atomic numbers of three elements X,Y& Z are 7,15 and 17 respectively. Which two of these elements will show similar chemical properties? Why?
 
4 Write any two methods in which the efficiency of a solar cooker can be improved? 
 
5 How much current will an electric bulb draw from 220 V source if the resistance of the bulb is  1200 ohm? If in place of bulb, when a heater is used the current drawn is 2.2 A. Calculate the resistance of the heater.
 
6 An object of height 2 cm is placed perpendicular to the principal axis, at a distance of 10 cm from a convex mirror. The mirror has a focal length 15 cm. Find the position and size of the image.
 
7 (i) What is hypermetropia?
 
(ii) Write the cause of hypermetroipa?
 
(iii) Draw the ray diagram showing how hypermetropia is corrected?
 
8 A reddish brown powder „Z‟ is heated in the presence of air in glass tube A.
CBSE Class 10 Science Question Paper Solved 2021 Set A
 
a) Identify Z and the colour of the CuO formed in glass tube A.
 
b) What type of reaction takes place in glass tube B? Write the chemical equation.
 
9 Given below are some elements of the Modern Periodic table.
 
                   6C ,8O, 10Ne, 11 Na, 14Si
 
a) Select the element that has one electron in the outermost shell and write the electronic configuration.
 
b) Select two elements that belong to the same group. Give reason for your answer.
 
c) Select two elements that belong to the same period. Which one has bigger atomic size?
 
10 a) How is glottis different from epiglottis? State their function.
 
b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
                                      OR
State the function of
 
a) pulmonary arteryb) Red blood cellsc) Blood Platelets
 
11 a) Distinguish between acquired and inherited traits giving one example of each
 
b) What are homologous organs? Give an example
 
12 Name the device that converts electrical energy into mechanical energy. Draw the labeled diagram and write the working principle of this device.
                                      OR
(i) How is an ammeter connected in an electric circuit? Give reason.
 
(ii) List out advantages of parallel combination of appliances over series combination in domestic circuit.
 
13 a) What is universal indicator?

 

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Where can I download the official PDF for CBSE Class 10 Science Question Paper 2021 Set 01 Solved?

The CBSE Class 10 Science Question Paper 2021 Set 01 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 10 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 10 Science Question Paper 2021 Set 01 Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 10 Science Question Paper 2021 Set 01 Solved are prepared by subject matter experts as per official marking scheme. Class 10 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 10 Science Question Paper 2021 Set 01 Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 10 Science Question Paper 2021 Set 01 Solved is important to understand repeat themes and question difficulty levels of Science. It helps Class 10 students to test their time management skills too.

Can I access CBSE Class 10 Science Question Paper 2021 Set 01 Solved in different languages?

Yes, where applicable, CBSE Class 10 Science Question Paper 2021 Set 01 Solved is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.

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No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Question Paper 2021 Set 01 Solved, are provided free of charge in mobile-friendly PDF.