Multiple choice general knowledge Which one of the following is not a pesticide? BHC Malathion Freon DDT Reveal answer Fill a bubble to check yourself C Correct answer Explanation Freon is a chlorofluorocarbon (CFC) used as a refrigerant, not as a pesticide. BHC (benzene hexachloride), Malathion, and DDT are all well-known pesticides used in agriculture and public health.