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Chemistry Questions and Answers

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171. Which one of the following compounds gives iodoform reaction?
 
  • A. acetone
  • B. benzo phenone
  • C. benzaldehyde
  • D. methyl alcohol
 
172. Chlorine is not used in the preparation of
 
  • A. hydrochloric acid
  • B. phosgene
  • C. phosphene
  • D. bleaching powder
 
 
173. Coke is obtained from coal by
 
  • A. destructive distillation
  • B. cracking
  • C. distillation
  • D. fractional distillation
 
174. Ornamental gold contains
 
  • A. tin
  • B. manganese
  • C. copper
  • D. silver
 
175. Marsh gas is
 
  • A. ethane
  • B. methane
  • C. co2
  • D. so2