Access and download CBSE Class 10 Science Question Paper SA 1 2011 Set 07, 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.
Solved Science Question Papers for Class 10
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 07 for your daily self-tests.
Science Question Papers for Class 10 (2026-27)
CBSE Class 10 Science Question Paper SA 1 2011 (7). 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. A few drops of sulphuric acid are added into water before electrolysis. Why ?
2. Give an example of a metal which is a liquid at room temperature.
3. Give one limitation of harnessing energy from Geothermal sources.
4. The resistance of a resistor is kept constant and the potential difference across its two ends is decreased to half of its former value. State the change that will occur in the current through it.
5. What is an alloy ? Give the composition and one use each of the following : (i) Brass (ii) Solder
6. Name the product obtained by recrystallisation of sodium carbonate and write its chemical formula.
7. (a) A solution of substance ‘X’ is used for white washing. What is the substance ‘X’ ? State the chemical reaction of ‘X’ with water.
(b) Why does the colour of copper sulphate solution change when an iron nail is dipped in it ?
8. Stomata of desert plants remain closed during day time. How do they take up carbon dioxide and perform photosynthesis ?
9. What is meant by ‘ocean thermal energy’ ? How can electricity be generated from the ocean energy ?
10. An electric resistor of resistance 20Ω draws a current of 5A. Calculate the heat produced by it in 30 seconds.
11. A student while studying the force experienced by a current carrying conductor in a magnetic field, records the following observations :
(i) The force experienced by the conductor increases as the current is increased
(ii) The force experienced by the conductor decreases as the strength of the magnetic field is increased.
12. A thick wire and a thin wire made from same material and of same length are connected one by one to the same source. In which case a larger current will flow in the circuit ? Justify your answer.
13. (a) What is a decomposition reaction ?
(b) What type of reaction will occur when silver chloride is exposed to sun light ?
(c) Identify the type of the reaction, when lead (II) nitrate solution is mixed with potassium iodide solution.
14. (a) How is common salt prepared from sea water?
(b) What will be the approximate pH of the aqueous solutions of the following salts :
(i) Sodium chloride (ii) Ammonium Chloride
Please click the link below to download pdf file of CBSE Class 10 Science Question Paper SA 1 2011 (7)
Free study material for Science
Practice Exam Question Papers for Class 10 Science CBSE Class 10 Science Question Paper SA 1 2011 Set 07
Previous Year Question Papers: Class 10 Science
Exam preparation for Class 10 students requires solving the CBSE Class 10 Science Question Paper SA 1 2011 Set 07 provided above. Easily download these past papers for Class 10 Science available in PDF format for the last 10 years. Regular drills on real past papers build absolute familiarity with question styles, helping you ace both descriptive prompts and MCQ tests.
Importance of solving CBSE Class 10 Science Question Paper SA 1 2011 Set 07
Regularly practicing CBSE Class 10 Science Question Paper SA 1 2011 Set 07 is the best way to improve your score in Class 10 Science. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Science paper within the allowed duration.
Benefits of downloading CBSE Class 10 Question Papers
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FAQs
The CBSE Class 10 Science Question Paper SA 1 2011 Set 07 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.
Yes, the solutions for CBSE Class 10 Science Question Paper SA 1 2011 Set 07 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.
Solving previous year papers like CBSE Class 10 Science Question Paper SA 1 2011 Set 07 is important to understand repeat themes and question difficulty levels of Science. It helps Class 10 students to test their time management skills too.
Yes, where applicable, CBSE Class 10 Science Question Paper SA 1 2011 Set 07 is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.
No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Question Paper SA 1 2011 Set 07, are provided free of charge in mobile-friendly PDF.