AIPMT PRELIMS2008Chemistry-Organic Chemistry
AIPMT PRELIMS 2008 Chemistry Nucleophilic Substitution Reactions MCQ Question
Type: MCQ-conceptual-Medium-Class 12
In a Sₙ2 substitution reaction of the type R–Br⁺Cl⁻ → R–Cl⁺Br⁻ Which one of the following has the highest relative rate?
A
CH₃–C–CH₂Br
B
CH₃CH₂Br
C
CH₃CH₂CH₂Br
D
CH₃–CH–CH₂Br
Correct Answer
Option B
Detailed Explanation
In Sₙ2 reactions, primary alkyl halides react faster than secondary or tertiary due to less steric hindrance.
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