What process would coal undergo to give coal gas; coal tar; ammoniacal liquor and coke?

A. Steam distillation
B. Destructive distillation
C. Liquefication
D. Hydrolysis

Correct Answer:

Option B – Destructive distillation

Explanation

Destructive distillation of a tonne of coal can produce 700 kg of coke, 100 liters of liquor ammonia, 50 liters of coal tar and 400 M3 of coal gas