Question Detail

CHM 102 Introductory Reaction Mechanism and Kinetics Objective Question
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Question

A group that donates electrons by resonance has what designation?
Options
A -I effect
B +I effect
C -R or -M effect
D +R or +M effect
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Groups that release electrons toward the rest of the molecule by resonance are designated as +R or +M (e.g., -OH, -NH2). Groups that withdraw electrons by resonance are -R or -M (e.g., -NO2).

Hint

Electron-donating resonance groups have + sign.

Question Info

Course: CHM 102
Topic: Introductory Reaction Mechanism and Kinetics
Type: Objective
Difficulty: Not specified
Question 465 of 1999
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