The expanded form of DDT is:
The expanded form of DDT is:

a. dichloro diphenyl trichloroethane

b. dichloro diethyl trichloroethane

c. dichloro dipyridyl trichloroethane

d. dichloro diphenyl tetrachloroacetate

Answer: a. dichloro diphenyl trichloroethane

Explanation: Dichloro diphenyl trichloroethane, better known as DDT, is colorless, tasteless, and is a compound of almost all aromatic chemicals, organochlorine, which was first developed as an insecticide, and eventually became famous for its environmental effects.