1.

Why are haloarenes more stable than haloalkanes and undergo electrophilic substitution reaction at ortho and para-positions ?

Answer»

Solution :Haloarenes are resonance hybrid of FOLLOWING five structures:

Since there are five resonating structures in haloarenes, THEREFORE, they are more STABLE than HALOALKANES. Electrophilic substitution will take place at o- and p-positions because there is negative charge at o- and p-positions.


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