Which of the following groups is a strong -M group?
Practice Questions
Q1
Which of the following groups is a strong -M group?
-OH
-OCH3
-NO2
-NH2
Questions & Step-by-Step Solutions
Which of the following groups is a strong -M group?
Step 1: Understand what a -M group is. A -M group (minus mesomeric group) is a group that withdraws electron density from a molecule through resonance.
Step 2: Identify the group in the question. The group we are looking at is -NO2 (nitro group).
Step 3: Analyze how -NO2 behaves. The -NO2 group has a nitrogen atom that can pull electron density away from the rest of the molecule through resonance.
Step 4: Conclude that since -NO2 withdraws electron density effectively, it is classified as a strong -M group.
