10.8 In the following pairs of halogen compounds, which compound undergoes faster reaction?
(i)
In reactions, the reaction is processed by the formation of carbocation as an intermediate and this is the rate-determining step for this kind of reaction. So the compound having more stable carbocation will react faster. In the given case 2- chloro-2-methylpropane we have carbon whereas in 3- Chloropentane we have carbon.
so 2- chloro-2-methylpropane readily undergo SN1 reaction