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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ev205

Select the correct statements about organophosphate and carbamate pesticides.

AThey inhibit acetylcholinesterase in the insect nervous system
BThey are more persistent in soil than DDT
CThey are broken down by hydrolysis in the environment
DThey are mainly herbicides used to kill weeds

Answer: A, C

These insecticides block acetylcholinesterase (A true) and hydrolyse over days to weeks (C true). They are far less persistent than DDT (B false) and act on insects, not weeds (D false).

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