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Class 10 Olympiad Science Mock Test 6
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Class 10 Olympiad Science Mock Test 6
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25 Questions

1. What happens when a coil carrying electric current is placed in a uniform magnetic field?
2. What is the charge on a wire, when current flows through it?
3. Lenz's law is derived from the law of conservation of
4. Which of the following compounds dissolves in water to give a solution with a pH greater than 7?
5. How many isomers does C4H10 have?
6. Which of the following transport(s) hormones from the place of origin to the place of target?
7. Which of these features make alveoli suitable for the exchange of gases?
8. Identify the reaction in which an atom or a group of atoms present in a molecule is displaced by another atom.
9. Acid rain is caused due to
10. Which pair of metals are extracted just by heating with their sulphide ores in air?
11. What is formed by the reaction of an acid with a base?
12. Where does fertilization take place in a plant?
13. A substance X reacted with dilute nitric acid to produce a colourless gas. This gas is dissolved in water to form a solution with pH value less than 7. Identify substance Y.
14. Which of the following is a transition element?
15. In which of the following is the focal length always positive?
16. What is the least distance of distinct vision for a normal adult human being?
17. Which statement is correct on the given reaction?
HNO3 + I2 -> HIO3 + NO2 + H2O
18. Which of the following is a metalloid?
19. Which of these is found in blood but not in lymph?
20. The resistance of a conducting wire does not depend on
21. A concave lens of focal length 'f' forms an image which is 'n' times the size of the object. The distance of the object from the lens is
22. Which hydrocarbon exhibits isomerism?
23. Identify a transitional element.
24. What is the smallest resistance that can be obtained by using a 6Ω resistor and a 12Ω resistor respectively connected in parallel?
25. Micropyle in seed helps in the entry of

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