Identify the correct decreasing order of reac | vedclass

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(A) The reactivity of alkyl halides towards nucleophilic substitution (like with ammonia) depends on the strength of the $C-X$ bond. As the size of th

Vedclass · Accepted Answer

$R-I > R-Br > R-Cl$

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(A) The reactivity of alkyl halides towards nucleophilic substitution (like with ammonia) depends on the strength of the $C-X$ bond. As the size of the halogen atom increases,the bond length increases and the bond dissociation energy decreases. The decreasing order of $C-X$ bond strength is $C-Cl > C-Br > C-I$. Therefore,the ease of breaking the bond follows the order $C-I > C-Br > C-Cl$. Thus,the correct decreasing order of reactivity of alkyl halides with ammonia is $R-I > R-Br > R-Cl$.

Identify the correct decreasing order of reactivity of alkyl halides with ammonia.

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