AIPMT MAINS2011Chemistry-Organic Chemistry

AIPMT MAINS 2011 Chemistry Nucleophilic Substitution Reactions MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Consider the reactions:

(i) (CH₃)₂CH−CH₂Br C2H5OH\xrightarrow{C₂H₅OH} (CH₃)₂CH−CH₂OC₂H₅ + HBr

(ii) (CH₃)₂CH−CH₂Br C2H5O\xrightarrow{C₂H₅O⁻} (CH₃)₂CH−CH₂OC₂H₅ + Br⁻

The mechanisms of reactions (i) and (ii) are respectively

A

S_N₂ and S_N₂

B

S_N₂ and S_N₁

C

S_N₁ and S_N₂

D

S_N₁ and S_N₁

Correct Answer

Option A

Detailed Explanation

Both reactions proceed via the S_N₂ mechanism due to the presence of a strong nucleophile and a primary substrate, which favors bimolecular nucleophilic substitution.

Found an issue with this question?