Q

# In the following pairs of halogen compounds, which compound undergoes faster S_N 1 reaction? (i)

10.8      In the following pairs of halogen compounds, which compound undergoes faster $S_{N}1$ reaction?

(i)

In $S_{N}1$ reactions, we see the formation of carbocation and this is the rate determining step for this kind of reactions. So the compound having more stable carbocation will react faster. In the given case 2- Chloro, 2- Methylpropane we have $3^{\circ}$ carbon whereas in 3- Chloropentane we have $2^{\circ}$ carbon.