Question

Match List-1 with List-2
List-1 (Insecticide)
(A) Acetamiprid
(B) Cypermethrin
(C) Chloropyriphos
(D) Lindane

List-2 (Class/Group)
(I) Synthetic pyrethroid
(II) Chlorinated hydrocarbon
(III) Neonicotinoid
(IV) Organophosphate

Choose the correct answer from the options given below:

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

Hint:

Memorize the classes of common insecticides:
Neonicotinoids: acetamiprid, imidacloprid;
Pyrethroids: cypermethrin, deltamethrin;
Organophosphates: chloropyriphos, malathion;
Chlorinated hydrocarbons: lindane, DDT.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Insecticides are classified based on their chemical structure and mode of action.
It is important to know the major classes of insecticides.

Step 2: Key Approach:
Match each insecticide with its correct chemical class.

Step 3: Detailed Explanation:
(A) Acetamiprid belongs to the Neonicotinoid class (III).
It acts on the nicotinic acetylcholine receptor.
(B) Cypermethrin is a Synthetic Pyrethroid (I).
It acts on sodium channels in insects.
(C) Chloropyriphos is an Organophosphate (IV).
It inhibits acetylcholinesterase.
(D) Lindane is a Chlorinated Hydrocarbon (II).
It acts on GABA-gated chloride channels.
Therefore, the correct matching is:
(A) - (III), (B) - (I), (C) - (IV), (D) - (II).
This corresponds to option (B).
Neonicotinoids are systemic, pyrethroids are contact, organophosphates are broad-spectrum, and chlorinated hydrocarbons are persistent.