10. The main source of Naphthalene is A.Charcoal B.Camphor C.Coal-tar D.Diesel
Answer: Option C Solution: Most naphthalene is derived from coal tar. From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but today petroleum-derived naphthalene represents only a minor component of naphthalene production.
