A) chlorinated hydrocarbons
B) organo phosphorus compounds
C) carbamides
D) pyrethroids
Correct Answer: D
Solution :
Pyrethroids are most recent insecticides in India. These are called Third generation insecticides e.g., Heseif, Deltamethrin. Chlorinated hydrocarbons are first generation insecticides and organo phosphorus are second generation insecticides.
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