Previous Year Question Papers for Class 10 Science
Explore authentic exam materials through the CBSE Class 10 Science Question Paper SA 1 2011 Set 07. 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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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
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Practice Exam Question Papers for Class 10 Science CBSE Class 10 Science Question Paper SA 1 2011 Set 07
Class 10 Science Past Exam Papers & Resources
Access structured past examination sets for Class 10 Science. Solving the CBSE Class 10 Science Question Paper SA 1 2011 Set 07 provided above helps students understand actual exam difficulty levels, question formats, and topic distributions for both descriptive and objective sections.
Importance of Solving CBSE Class 10 Science Question Paper SA 1 2011 Set 07
Practicing past question sets under timed home conditions helps refine pacing and time management skills, ensuring you complete your Science examination comfortably within the official duration.
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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.