Question

_______ is a black sticky liquid formed during destructive distillation of coal.

Answer 1

(1)Destructive distillation is a chemical process of heating substances in the absence of air or in limited amounts of air.

(2)When coal is heated strongly in the absence of air, it produces coke, coal gas, coal tar, and ammonia solution.

(3)Coal tar is a foul-smelling thick black liquid. Its various components are used for making dyes, drugs, and explosives.

Therefore, coal tar is a black sticky liquid formed during destructive distillation of coal.