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JEE Main · 2022 · 28 Jun 2022 · Shift 1 · Environmental Chemistry

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Which amongst the following is not a pesticide?
  1. (A)DDT
  2. (B)Organophosphates
  3. (C)Dieldrin
  4. (D)Sodium arsenite✓ Correct

Answer: (D)

Solution

Pesticides are chemicals used to kill or control pests (insects, weeds, fungi, etc.).
  • DDT (dichlorodiphenyltrichloroethane): a well-known organochlorine insecticide.
  • Organophosphates: a class of insecticides (e.g., malathion, parathion).
  • Dieldrin: an organochlorine insecticide.
  • Sodium arsenite (): an inorganic arsenic compound used as a herbicide and wood preservative, but it is not classified as a pesticide in the typical sense (it's more of a general biocide/herbicide).

Among the options, sodium arsenite is the least typical "pesticide" and is the correct answer as "not a pesticide" in the strict context of the question.

JEE Main · 2022 · 28 Jun 2022 · Shift 1 · Single correct option

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