Question

A primary alkyl halide would prefer to undergo

• A. $S_{N}1$ reaction
• B. $S_{N}2$ reaction
• C. $\alpha -$ elimination
• D. Racemization

Answer 1

Answer: (B)

Due to little steric hindrance and least stability of $1^{\circ }$ carbocations, $1^{\circ }$ alkyl halides prefer to undergo $S_{N}2$ reactions.