Question

$S_{N}1$reaction is fastest in

• A. $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { Br }$
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

Order of reactivity of alky halides towards $S_{N}1$reaction on the basis of stability of intermediate carbocations is

$3{^\circ} > 2º > 1{^\circ} > CH_{3} - X$