Question

Match List I and List II
\begin{tabular{|l|l|} List I (Chemical Class) & List II (Herbicides)
A. Benzoic acids & I. Propanil
B. Chlorophenoxy compounds & II. Propham, Barban
C. Anilides & III. Dicamba, Amiben
D. Carbamates & IV. 2,4-D, MCPA

Choose the correct answer from the options given below:}

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

Hint:

2,4-D is the "poster child" for Phenoxy herbicides. Always look for 2,4-D when you see "Chlorophenoxy" or "Phenoxy" in a match-the-following question.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Herbicides are classified into chemical families based on their molecular structure, which often determines their mode of action and selectivity.

Step 3: Detailed Explanation:
1. Benzoic acids (A): Herbicides like Dicamba and Amiben (Chloramben) belong to this group. They act as auxin mimics. (Matches III)
2. Chlorophenoxy compounds (B): This is one of the oldest groups, including 2,4-D and MCPA, primarily used for broadleaf weed control. (Matches IV)
3. Anilides (C): Propanil is a well-known anilide herbicide used extensively in rice cultivation. (Matches I)
4. Carbamates (D): Compounds like Propham and Barban belong to the carbamate family, often used as soil-applied herbicides. (Matches II)

Step 4: Final Answer:
The correct matching sequence is A-III, B-IV, C-I, D-II.