Which of the following statements is correct | vedclass

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(B) The reactivity of alkyl halides in $S_N2$ reactions is primarily governed by steric hindrance. The order of reactivity is: $Primary > Secondary >

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$1-$Iodobut$-2-$ene is more reactive than $1-$iodobutane.

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(B) The reactivity of alkyl halides in $S_N2$ reactions is primarily governed by steric hindrance. The order of reactivity is: $Primary > Secondary > Tertiary$. Additionally,the nature of the leaving group affects the rate,with iodide being a better leaving group than chloride. In option $B$,$1$-iodobut-$2$-ene is an allylic halide. Allylic halides are significantly more reactive in $S_N2$ reactions compared to simple primary alkyl halides like $1$-iodobutane due to the stabilization of the transition state by the adjacent double bond. Therefore,$1$-iodobut-$2$-ene is more reactive than $1$-iodobutane.

Which of the following statements is correct for the reactivity in $S_N2$ reaction?

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