Question: Which of the following groups is a weak -M group?
Options:
-CHO
-COOH
-NO2
-F
Correct Answer: -F
Solution:
-F is a weak -M group as it has a slight electron-withdrawing effect but is not as strong as -CHO or -COOH.
Which of the following groups is a weak -M group?
Practice Questions
Q1
Which of the following groups is a weak -M group?
-CHO
-COOH
-NO2
-F
Questions & Step-by-Step Solutions
Which of the following groups is a weak -M group?
Step 1: Understand what a weak -M group is. A weak -M (minus mesomeric) group is a substituent that can withdraw electrons from a molecule but does so only slightly.
Step 2: Identify examples of -M groups. Common -M groups include -CHO (aldehyde) and -COOH (carboxylic acid), which are strong -M groups.
Step 3: Compare the strength of -F (fluorine) with other -M groups. Fluorine has a slight electron-withdrawing effect but is not as strong as -CHO or -COOH.
Step 4: Conclude that -F is a weak -M group because it withdraws electrons but not as effectively as the stronger -M groups.
No concepts available.
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