Name the substance obtained from the coal tar and used to repel moths and insects.
Naphthalene balls are obtained from the coal tar and used to repel moths and insects.
Which substance is used for road surfacing these days?
These days bitumen is used for road surfacing in place of coal tar.
Why is coke seldom used as a fuel?
Coke seldom used as a household fuel as it is expensive, it is also used in the chemical industry in metal extraction.