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haloarenes are less reactive than haloalkanes because:

1. resonance effect more the resonatinsg structures,more the stability

2.difference in hybridisation of the C-X bond i.e.,in haloalkanes,the hybridisation is sp3 whereas in haloarenes it is sp2 hybridised.As sp2 is more electronegative therefore bond length is shorter and hence stronger.

these are the major reasons.

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11y ago
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13y ago

Because the reaction mechanism calls for an electron rich species - which the haldie is

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Q: Why do alkyl halides undergo the nucleophlic subtitution reaction?
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