Chemistry: Chemical Reactions
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Chemistry: Chemical Reactions
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25 Questions

1. Information about the order of reaction is obtained from its
2. Hydrogen and chlorine react vigorously in the presence of light (explosively) due to the formation of
3. Why does milk curdle?
4. Which of the following can be purified by the electrolytic method?
5. Many microbes can effect the chemical process of
6. When zinc reacts with hydrochloric acid, the gas evolved is
7. Iron rusts at the area
8. A catalyst is a substance which
9. The metal that is used as a catalyst in the hydrogenation of oils is
10. The metal that does not give H2 on treatment with dilute HCl is
11. Many microbes can effect the chemical process of
12. All the following are examples of chemical change, except
13. The high reactivity of fluorine is due to
14. A catalyst is a substance which
15. A catalyst remains unchanged at the end of the reaction with regard to
16. When a salt dissolves in water
17. A catalyst
18. Which of the following is not a chemical action?
19. The weight of a rusted iron object compared to that of an unrusted one is
20. Hydrogen diffuses '
21. The metal that is used as a catalyst in the hydrogenation of oils is
22. Camphor can easily be purified by the process of
23. Which of the following is not a chemical action?
24. Which of the following is a chemical change?
25. The high reactivity of fluorine is due to

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