JAMB - Chemistry (2020 - No. 9)
What process would coal undergo to give coal gas, coal tar, ammoniacal liquor and coke?
Steam distillation
Destructive distillation
Liquefication
Hydrolysis
Vysvětlení
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 M\(^3\) of coal gas