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Order of reactivity of alkyl halides towards amines is:
ARI > RBr > RCl
BRBr > RCl > RI
CRBr > RI > RCl
DRCl > RBr > RI
Answer & Solution
Correct answer: A. RI > RBr > RCl
The C-I bond is weakest and iodide the best leaving group, so alkyl iodides react fastest.
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