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Class 10 Olympiad Science Mock Test 5
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Class 10 Olympiad Science Mock Test 5
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25 Questions

1. Which of the given reactions is an odd one?
2. To produce 4 molecules of sugar, a plant needs
3. Study the given reaction.

In this reaction propanone is
4. Three resistors of 2.5Ω, 12Ω and 3.5Ω are connected in series. Which single resistor can replace three of them in a circuit?
5. Which of the following statements is correct about C–60?
6. In Rajasthan khadins are used to
7. A ray of light is incident on a concave mirror. If it is parallel to the principal axis, then the reflected ray will pass through the
8. The direction of magnetic field at any point can be found by using a
9. Which of the following is NOT a natural resource?
10. The resistance of a wire does NOT depend on
11. Which metals are used to make solder?
12. Why is gypsum added to cement?
13. Solar constant is the amount of solar energy received
14. The male sex hormone is
15. Which substance oxidises an element?
16. How does the eye change its focus to see near or distant objects?
17. When Anvesh's cerebellum is injured in an accident, Anvesh is unable to do which of the following actions?
18. The equivalent resistance of the series combination of two equal resistances is S.
When they are joined in parallel, the total resistance is 'p'. If S = np, then the value of 'n' is
19. Human arm is homologous with
20. What is the current at point X in the circuit shown below?
21. How is vinegar made?
22. Which of the following statements is true of Faraday's laws of electromagnetic induction?
23. Which of the following is true about the use of the nectar in a flower?
24. Metallic pollutant released by automobiles is
25. Which of the following represents the total amount of energy stored and the number of organisms involved in a food chain?

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