DDT is classified as which type of pesticide?

• A. Organochlorines
• B. Organophosphates
• C. Carbamates
• D. Pyrethroids

Answer: (A)

DDT is classified as an organochlorine pesticide because its molecule contains multiple chlorine atoms bound to carbon. This chlorinated hydrocarbon structure defines the organochlorine family, which are typically highly persistent in the environment and can bioaccumulate in fatty tissues.

Other pesticide classes are distinguished by different functional groups or elements: organophosphates contain phosphorus and act as acetylcholinesterase inhibitors, carbamates have carbamate groups, and pyrethroids are synthetic analogs of pyrethrins with distinct ester-linked structures. DDT does not have phosphorus or carbamate groups, nor is it a pyrethroid, so it fits best with the organochlorine category.