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JAMB Chemistry 1989 Question 32

Question 32

Petroleum and Coal

Some products of destructive distillation of coal are

  1. A.carbon (IV) oxide and ethanoic acid
  2. B.trioxocarbonate (IV) acid and methanoic acid
  3. C.producer gas and water gas
  4. D.coke and ammonia liquor.
Show the answer and explanation

Answer: D (coke and ammonia liquor.)

Explanation

Heating coal without air gives coke, coal tar, ammoniacal liquor and coal gas. Producer gas and water gas are made from coke afterwards.