Question

Which among the following compounds will undergo fastest \(S_N2\) reaction.

(1) 

(2) 

(3) 

(4) 

Answer 1

Correct option is (3)

(\(1 ^\circ\) Alkyl Halide)

\(SN^2 \) Reaction → \(2^{nd}\) order Nucleophilic substitution Reaction.

\(\Rightarrow\) Backside attack of incoming Nucleophile on Alkyl Halide.

Order for \(SN^2 \rightarrow 1^\circ > 2 ^\circ > 3 ^\circ\) Alkyl Halide.