Question
Which among the following halide/s will not show $\mathrm{S_N 1}$ reaction:
(A) $\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$
(B) $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{Cl}$
(C)
(D)
Choose the most appropriate answer from the options given below :