Question

what is coal tar. write any two uses

Answer 1

Coal tar is obtained using destructive distillation process of coal.
It is used to make roads and some other things.

Answer 2

Explanation:

Other properties, such as hardness, grindability, ash-fusion temperature, and free-swelling index (a visual measurement of the amount of swelling that occurs when a coal sample is heated in a covered crucible), may affect coal mining and preparation, as well as the way in which a coal is used.