Question

Name the product(s) formed on heating coal in the absence of air.

Answer 1

Destructive distillation of coal:

• When coal is heated in the absence of oxygen$\left({\mathrm{O}}_2\right)$, useful products like coke, coal gas, and coal tar are formed.
• The process of strongly heating a substance in the absence of air is called destructive distillation.
• $\mathrm{Coal}\stackrel{\mathrm{destructive}\mathrm{distllation}}{\to }\mathrm{coke}+\mathrm{coal}\mathrm{gas}+\mathrm{ammoniacal}\mathrm{liquor}+\mathrm{coal}\mathrm{tar}$