Science- Paper-VII
This paper contains 25 questions. All questions are compulsory. Each question carry 2 marks. Max. time to complete this paper is 30 minutes.
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1. Battery was invented by *
2 points
2. The most abundant element in the earth’s crust is oxygen. The second most abundant element in the earth’s crust is *
2 points
3. The nearest planet to the Sun is *
2 points
4. Bronze is an alloy of *
2 points
5. Molecules with identical molecular formulae but with different structural formulae are called *
2 points
6. One way of transfer of heat energy is ‘convection’ which occurs in *
2 points
7. Which from the following is incompressible? *
2 points
8. The key factor in determining the weather is the quantity of ________ in the atmosphere. *
2 points
9. The entropy of the universe is *
2 points
10. Which from the following methods of heat transfer can take place in a vacuum? *
2 points
11. Neutrons were discovered by *
2 points
12. Mass Spectrograph was invented by *
2 points
13. Nucleus was discovered by *
2 points
14. Which is the process of science? *
2 points
15. Salty water can be made pure by the method of *
2 points
16. The unit of efficiency is *
2 points
17. Which from the following is NOT a stored energy? *
2 points
18. Energy can be converted from one form to another, but all energy ends up as *
2 points
19. A battery converts ________ into electrical energy. *
2 points
20. Which from the following is NOT a renewable energy resource? *
2 points
21. Which from the following is NOT a non-renewable energy resource? *
2 points
22. Current is the flow of *
2 points
23. The unit of current is *
2 points
24. To prevent electric shocks, a/an ________ is placed in the circuit. *
2 points
25. Electrons were discovered by *
2 points
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