In a nucleophilic substitution reaction,the o | vedclass

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Question

(B) In a nucleophilic substitution reaction,the leaving group ability is inversely proportional to the basic strength of the group. Weaker bases are b

Vedclass · Accepted Answer

$I^{-} > Br^{-} > Cl^{-}$

Vedclass · Answer

(B) In a nucleophilic substitution reaction,the leaving group ability is inversely proportional to the basic strength of the group. Weaker bases are better leaving groups because they are more stable in the solution after departing. The basic strength order of the given halide ions is: $I^{-} Since $I^{-}$ is the weakest base among the three,it is the best leaving group. Therefore,the order of leaving group ability is: $I^{-} > Br^{-} > Cl^{-}$.

In a nucleophilic substitution reaction,the order of halogens as incoming (attacking) nucleophiles is: $I^{-} > Br^{-} > Cl^{-}$. The order of halogens as departing (leaving) nucleophiles should be:

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