Chemistry Practice Test
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Chemistry Practice Test
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25 Questions

1. A vegetable containing sulphur is
2. Benzene can be obtained
3. The smallest particle of a pure substance showing all the properties is
4. Sodium is kept in kerosene because it
5. An alloy of '
6. Helium is preferred to hydrogen in airships because helium
7. The molecule which has the highest percentage of ionic character among the following is
8. Permanent hardness of water as a result of sulphates of metals can be destroyed by the use of
9. Solder is an alloy of
10. Tellurium is a
11. Which of the following compounds can form hydrogen bonds?
12. The reagent used for restoring the colour of old oil paintings is
13. Starch is a polymer of
14. Two elements frequently used for making transistors are
15. The purest form of iron is
16. Which of the following is a protein?
17. For instant energy, athletes take
18. Which of the following biochemicals is not a polymer?
19. Lipids are
20. The reagent that bleaches the colour of a fabric is
21. In electrolytic refining,
22. The energy of an electron is taken as zero when it is
23. Which was the first organic compound to be synthesized in a laboratory?
24. Which of the following oxides will give a metal on heating?
25. Swelling of a sprained foot is reduced by soaking it in warm water containing a large amount of common salt. This is because of a phenomenon called

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