Which of the following alkyl halides is hydro | vedclass

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(A) The rate of $S_N2$ reaction depends on the steric hindrance around the electrophilic carbon atom.$1$. The order of reactivity for $S_N2$ reactions

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$CH_3-Br$

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(A) The rate of $S_N2$ reaction depends on the steric hindrance around the electrophilic carbon atom.$1$. The order of reactivity for $S_N2$ reactions is: $Methyl \ halide > Primary \ (1^\circ) > Secondary \ (2^\circ) > Tertiary \ (3^\circ)$.$2$. $CH_3-Br$ is a methyl halide, which has the least steric hindrance.$3$. $(CH_3)_3C-Br$ is a tertiary halide, $(CH_3)_2CH-Br$ is a secondary halide, and $CH_3-CH_2-Br$ is a primary halide.$4$. Therefore, $CH_3-Br$ reacts most rapidly.

Which of the following alkyl halides is hydrolyzed most rapidly by the $S_N2$ mechanism?

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