Which of the following is not an organophosphate pesticide?

Lindane is not classified as an organophosphate pesticide; it belongs to a different category known as chlorinated hydrocarbons. Organophosphate pesticides work by inhibiting the enzyme acetylcholinesterase, leading to a buildup of acetylcholine in the nervous system and causing toxic effects. Examples of organophosphates include Parathion and TEPP, which function through this mechanism.

DDVP, also known as dichlorvos, is an organophosphate involved in pest control but has a distinct chemical structure and mechanism similar to other members of this group. In contrast, Lindane’s active ingredient is gamma-hexachlorocyclohexane, which does not share the characteristics of organophosphates. Understanding this difference is important for recognizing the specific health and regulatory implications associated with various pesticide classes.