Which one of the following is obtained from coal tar?

Naphthalene balls are obtained from coal tar.

Let us see how naphthalene is obtained from coal tar.

Step 1: coal tar is the raw material used.

Step 2: Naphthalene is fractionated through a weight-removing column.

Step 3: crude naphthalene is obtained and then industrial naphthalene is prepared through crude naphthalene rectifying column.