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Chemistry Questions and Answers

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26. Which is used to produce artificial rain?
 
  • A. sand
  • B. silver iodide
  • C. silver nitrate
  • D. copper oxide
 
27. The alcohol used in the preparation of dynamite is
 
  • A. glycerol
  • B. ethyl alcohol
  • C. glycol
  • D. methyl alcohol
 
28. The poisonous gas produced by a motor car
 
  • A. nitrous oxide
  • B. carbon disulphide
  • C. carbon monoxide
  • D. methyl isocyanate
 
29. Cooking oil can be converted into vegetable ghee by the process of
 
  • A. hydrogenation
  • B. distillation
  • C. crystallization
  • D. oxidation
 
30. Carbon dioxide is
 
  • A. a basic oxide
  • B. an acidic oxide
  • C. a neutral oxide
  • D. an atmospheric acid