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Chemistry Questions and Answers

General Science
137. Chlorine is not used in the preparation of
 
  • A. hydrochloric acid
  • B. phosgene
  • C. phosphene
  • D. bleaching powder
 
 
138. Coke is obtained from coal by
 
  • A. destructive distillation
  • B. cracking
  • C. distillation
  • D. fractional distillation
 
139. Ornamental gold contains
 
  • A. tin
  • B. manganese
  • C. copper
  • D. silver
 
140. Marsh gas is
 
  • A. ethane
  • B. methane
  • C. co2
  • D. so2