Question

Which among the following is a use of 2, 4-dichlorophenoxy acetic acid?

• A. Antiseptic
• B. Selective drug
• C. Selective weed killer
• D. Explosive

Hint:

2, 4-dichlorophenoxy acetic acid (2,4-D) is a selective herbicide used to control broadleaf weeds in crops.

Answer 1

The Correct Option is C

Step 1: Understanding the compound.
2, 4-dichlorophenoxy acetic acid (2,4-D) is a widely used herbicide, known for its selective action as a weed killer, particularly in crops like grasses. It works by mimicking the action of plant hormones, leading to the death of broadleaf plants.

Step 2: Analyzing the options.
(A) Antiseptic: This is incorrect — 2, 4-D is not used as an antiseptic.
(B) Selective drug: This is incorrect — 2, 4-D is not used as a drug.
(C) Selective weed killer: Correct — 2, 4-D is used as a selective weed killer.
(D) Explosive: This is incorrect — 2, 4-D is not an explosive.

Step 3: Conclusion.
The correct answer is (C) Selective weed killer, as 2, 4-D is commonly used as a herbicide.