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Chemistry · 2026 · 2 marks
Haloalkanes and HaloarenesChemical Reactions of Haloalkanes and Haloarenes2 marksUnderstandvery short answer
CBSE 2026 · Region 1 · Set 1 · Q18
Why are haloarenes less reactive towards nucleophilic substitution reaction? Give two reasons.
Why are haloarenes less reactive towards nucleophilic substitution reaction? Give two reasons.
Marking-scheme solution
Because of,
(i)
C−X acquires partial double bond due to resonance
(ii)
sp2 hybridization of C of C−X make it more electronegative and hold the
electron pair tightly.
(iii)
repulsion between nucleophile and electron rich arenes.
(iv)
Instability of phenyl cation
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