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Chemistry Test Bank
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Chemistry Test Bank
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25 Questions

1. Which of the following is not an inert gas?
2. Tellurium is a
3. Saccharin is
4. For the reaction, PCl3 (g) + Cl2 (g) PCl5 (g), the value of Kc at 250° is 26. The value of Kp at this temperature will be
5. Water drops are spherical because of the property of
6. A Dewar flask is usually used to
7. In the compounds of type ECl3, where E = B, P, As or Bi the angles Cl ' E ' Cl for different E are in the order
8. The oxidation state of molybdenum in its oxo complex species [Mo2O4 (C2H4)2 (H2O2)]2'
9. Glass is a good
10. For the first-order decomposition reaction of N2O5 written as 2 N2O5 (g) → 4 NO2 (g) + O2 (g) The half-life is given as
11. is formed by addition polymerization.
12. The chemical name of quartz is
13. Which of the following is a mixture?
14. A polymer that can be obtained from a dialcohol and a diacid is a typical
15. Phenol is a raw material used in the manufacture of
16. A sample of steel weighing 3.0 g was subjected to a chemical reaction to convert its sulphur into H2S gas. The evolved gas required 2.40 ml. of 0.02 N solution of iodine. Then, the percentage of S in steel is
17. During dehydration, the substance that the body usually loses is
18. Among the following which one is not paramagnetic? (Atomic numbers: Be = 4, Ne = 10, Cl = 17, As = 33).
19. Which of the following salts, when dissolved in water, undergoes hydrolysis?
20. The vapour density of certain gas X is 4 times that of Y. The molecular mass of X is M the molecular mass of Y is
21. Charcoal is
22. Which of the following metals can be extracted from the ore called cassiterite?
23. Magnetic moment of V (Z = 23), Cr (Z = 24) and Mn (Z = 25) are x, y and z respectively. Then
24. Among the following ions, which one has the highest paramagnetism?
25. A metal is left exposed to atmosphere for some time. It becomes coated with green basic carbonate. The metal must be

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