Question Detail

CHM 102 Introductory Reaction Mechanism and Kinetics Objective Question

Question

What is the relative magnitude of +I effect among alkyl groups?
Options
A Methyl > Ethyl > Isopropyl > tert-Butyl
B tert-Butyl > Isopropyl > Ethyl > Methyl
Correct Answer
C All are equal
D Methyl > tert-Butyl > Ethyl > Isopropyl
Correct Answer

Option B is the correct answer.

Detailed Explanation

The +I effect of alkyl groups increases with branching: tert-butyl > isopropyl > ethyl > methyl, due to increased electron-donating ability.

Hint

More branched alkyl groups donate electrons more strongly.

Question Info