The electrophile, attacks the benzene ring to generate the intermediate
complex. Of the following, which
complex is of lowest energy ?




As we learnt ,
Stability due to resonance -
More the no of resonating structure more is the stability.
- wherein

In , there is no NO2 , which is an electron withdrawing group and decreases the stability of cation. Hence , it is of lowest energy.
Option 1)

Option 2)

Option 3)

Option 4)

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