Question

the colour of coal tar is black then how the colour of nephthalene ball obtained from coal tar is purely white?

Answer 1

"

Naphthalene is obtained from cold tar. Coal-tar naphthalene is a volatile chemical product obtained by the distillation of coal tar.

Shale naphthalene is obtained by the distillation of oil produced from bituminous shale by the process of destructive distillation.

Petroleum naphtha is petroleum distillate which contains aliphatic hydrocarbons. Its boiling point is higher than gasoline."