In the given pair of compounds,in which pair | vedclass

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(D) The reactivity of alkyl halides toward $S_N2$ reaction is primarily governed by steric hindrance. The $S_N2$ mechanism involves the nucleophilic a

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$2-$Chloro$-3,3-$dimethylbutane or $1-$chloro$-3,3-$dimethylbutane

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(D) The reactivity of alkyl halides toward $S_N2$ reaction is primarily governed by steric hindrance. The $S_N2$ mechanism involves the nucleophilic attack from the backside of the carbon atom bonded to the leaving group. As the steric hindrance around the electrophilic carbon increases,the rate of $S_N2$ reaction decreases. In option $D$,we compare $2$-chloro-$3,3$-dimethylbutane and $1$-chloro-$3,3$-dimethylbutane. In $2$-chloro-$3,3$-dimethylbutane,the chlorine atom is attached to a secondary carbon,and there is significant branching at the $\beta$-position. In $1$-chloro-$3,3$-dimethylbutane,the chlorine atom is attached to a primary carbon,and the branching is at the $\gamma$-position. Since the steric hindrance at the $\alpha$-carbon is much lower in the primary halide ($1$-chloro-$3,3$-dimethylbutane) compared to the secondary halide ($2$-chloro-$3,3$-dimethylbutane),the second compound is more reactive toward $S_N2$ reaction.

In the given pair of compounds,in which pair is the second compound more reactive than the first toward $S_N2$ reaction?

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