CBSE Class 10 Science Question Paper SA 1 2011 Set 03

Access and download CBSE Class 10 Science Question Paper SA 1 2011 Set 03, carefully designed as per the latest 2026-27 examination guidelines issued by CBSE, NCERT, and KVS. These Class 10 Science previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.

CBSE Class 10 Science Exam Question Papers

Every Class 10 Science student should practice with these question papers to understand question trends and marks distribution. Working through them in a timed test environment makes you faster and more accurate. Use the full CBSE Class 10 Science Question Paper SA 1 2011 Set 03 for your daily self-tests.

Science Question Papers for Class 10 (2026-27)

CBSE Class 10 Science Question Paper SA 1 2011 (3) Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SUMMATIVE ASSESSMENT - I (2011)

SCIENCE  Class – X

SECTION-A

1. Name the type of following reaction:

             N2+3H2 -> 2NH3

2. Name one metal which has very low melting point.

3. Name the residue obtained when wood is burnt in a limited supply of air.

4. (a) What are the ionic compounds ?

    (b) Give the formation of MgCl2 from Mg and Cl2.

5. Write observation with reaction for the following : Water is added to plaster of Paris.

6. Define oxidation and reduction. In the reaction MnO2+4 HCl ->MnCl2+2H2O + Clidentify which one is reduced and which one is oxidized.

7. What happens when iron nails are kept into a copper sulphate solution ? Write the balanced chemical equation for the reaction

8. Name the enzyme found in saliva. State the role of saliva in the digestion of food.

9. (a) What is solar cell panel ? (b) Name any two elements that are used for making solar cell panels.

10. When do you say that the resistance of a wire is 1 om? 

11. What precautions should be taken to avoid overloading of domestic electric circuits ?

12. Two electric lamps rated 100 W, 220V and 25W, 220V are connected in parallel to a 220V supply. Calculate the total electrical current in the circuit. 100 W, 220V 25W, 220V 220V

13. Give one equation each for decomposition reactions where energy is supplied in the form of : (i) heat (ii) light (iii) electricity 

14. When electricity is passed through a common salt solution, sodium hydroxide is produced along with the liberation of two gases „X‟ and „Y‟. „X‟ burns with a pop sound whereas „Y‟ is used for disinfecting drinking water. (i) Identify X and Y. (ii) Give the chemical equation for the reaction stated above. (iii) State the reaction of Y with dry slaked lime. „X‟ „Y‟

15. Name the gas that liberates when an acid reacts with a metal. Illustrate your answer with an example giving the balanced equation for the reaction involved. How would you test the gas evolved ?

16. Ram has met with an accident after that he lost the capacity to (i) walk in straight line, (ii) smell anything, (iii) does not feel full after eating. Which part of brain is damaged in each case.

Please click the link below to download pdf file of CBSE Class 10 Science Question Paper SA 1 2011 (3)


Practice Exam Question Papers for Class 10 Science CBSE Class 10 Science Question Paper SA 1 2011 Set 03

Last 10 Years Question Papers for Class 10 Science

To familiarize yourself with recurring exam trends, it is essential for Class 10 learners to review the CBSE Class 10 Science Question Paper SA 1 2011 Set 03 shared above. These past papers for Class 10 Science are readily accessible as a PDF format for the last 10 years download. Working through these real examination sets reveals the true difficulty scale and thematic coverage, preparing you thoroughly for both descriptive and MCQ sections.

Why Practice Class 10 Science Question Papers?

Consistent practice using the CBSE Class 10 Science Question Paper SA 1 2011 Set 03 is a proven strategy to elevate your Class 10 Science performance. These documents clarify the official marking scheme and framework followed by the CBSE. Simulating real test conditions at home helps hone your time management abilities, ensuring you finish your Science paper comfortably within the official time limit.

Benefits of downloading CBSE Class 10 Question Papers

Having the CBSE Class 10 Science Question Paper SA 1 2011 Set 03 in PDF format allows you to revise key concepts anywhere, even without an internet connection. These sets are a reliable tool to practice numerical problems and understand the correct approach to all types of answers. After solving the questions, you should compare your work with the solutions provided by our teachers. Along with these papers, students should always solve the Class 10 Science sample papers and MCQ tests online for a complete revision.

FAQs

Where can I download the official PDF for CBSE Class 10 Science Question Paper SA 1 2011 Set 03?

The CBSE Class 10 Science Question Paper SA 1 2011 Set 03 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 SA 1 2011 Set 03 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 10 Science Question Paper SA 1 2011 Set 03 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 SA 1 2011 Set 03 help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 10 Science Question Paper SA 1 2011 Set 03 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 SA 1 2011 Set 03 in different languages?

Yes, where applicable, CBSE Class 10 Science Question Paper SA 1 2011 Set 03 is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.

Is there a charge to download the CBSE Class 10 Science solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Question Paper SA 1 2011 Set 03, are provided free of charge in mobile-friendly PDF.