The process of heating coal in the absence of air is called the destructive distallation of coal. Coal contains a number of elements such as carbon, hydrogen, oxygen, nitrogen and sulphur. When coal is heated in the absence of air, a number of products are obtained. A laboratory set up to carry out destructive distillation of coal as shown.

Read the below questions and try to answer them.
Name the main products obtained by the destructive distillation of coal.

Explanation

(1) Coke (2) Coal tar (3) Coal gas