Question

Match List-I with List-II:

• A. A-(III), B-(IV), C-(I), D-(II)
• B. A-(I), B-(III), C-(II), D-(IV)
• C. A-(IV), B-(I), C-(II), D-(III)
• D. A-(III), B-(II), C-(IV), D-(I)

Hint:

Match insecticides with their biochemical mode of action — this is key in pest management and resistance classification.

Answer 1

The Correct Option is D

Pyriproxyfen → Juvenile Hormone (JH) mimic (III)
Chlorantraniliprole → Acetyl cholinesterase inhibitor (II)
Indoxacarb → Calcium channel activator (IV)
Propoxur → Sodium channel blocker (I)

Answer 2

A quicker route is to fix one pairing first and use it to eliminate wrong options. Pyriproxyfen (A) is universally recognised as a juvenile hormone mimic, so its List-II match must be (III); this immediately rules out any option pairing A with (I) or (IV). Of the remaining choices that keep A-(III), only one matches the rest of the key exactly for the other three compounds, giving B-(II), C-(IV) and D-(I). That gives A-(III), B-(II), C-(IV), D-(I).