Which of the following groups exhibits a strong +M effect?
Practice Questions
1 question
Q1
Which of the following groups exhibits a strong +M effect?
-NO2
-OH
-CN
-COOH
The -OH group exhibits a strong +M effect due to its ability to donate electron density through resonance.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following groups exhibits a strong +M effect?
Solution: The -OH group exhibits a strong +M effect due to its ability to donate electron density through resonance.
Steps: 5
Step 1: Understand what +M effect means. +M effect refers to the ability of a group to donate electron density to a molecule through resonance.
Step 2: Identify the -OH group. The -OH group is known as a hydroxyl group.
Step 3: Learn how the -OH group donates electron density. The oxygen atom in the -OH group has lone pairs of electrons that can be shared with the rest of the molecule.
Step 4: Recognize that this sharing of electrons through resonance increases the electron density in the molecule, which is characteristic of a strong +M effect.
Step 5: Conclude that since the -OH group can effectively donate electron density through resonance, it exhibits a strong +M effect.
