Which of the following is most reactive towar | vedclass

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(C) The reactivity of alkyl halides towards ${S_N}^2$ reaction depends on the degree of steric hindrance at the carbon atom attached to the halogen. T

Vedclass · Accepted Answer

chloromethylcyclohexane

Vedclass · Answer

(C) The reactivity of alkyl halides towards ${S_N}^2$ reaction depends on the degree of steric hindrance at the carbon atom attached to the halogen. The order of reactivity is: $primary > secondary > tertiary$. $(a)$ $2$-chlorocyclohexane-$1$-methyl is a secondary $(2^{\circ})$ alkyl halide. $(b)$ $1$-chloro-$1$-methylcyclohexane is a tertiary $(3^{\circ})$ alkyl halide. $(c)$ Chloromethylcyclohexane is a primary $(1^{\circ})$ alkyl halide. $(d)$ Chlorobenzene is an aryl halide,which is very unreactive towards ${S_N}^2$ due to partial double bond character and steric hindrance. Since primary alkyl halides have the least steric hindrance,they are the most reactive towards ${S_N}^2$ reactions. Therefore,chloromethylcyclohexane is the most reactive.

Which of the following is most reactive towards ${S_N}^2$ reaction?

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