Which of the following carbocations is expect | vedclass

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(C) The $-NO_2$ group is a strong electron-withdrawing group ($-I$ and $-M$ effects). In electrophilic aromatic substitution,the stability of the inte

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(C) The $-NO_2$ group is a strong electron-withdrawing group ($-I$ and $-M$ effects). In electrophilic aromatic substitution,the stability of the intermediate carbocation (arenium ion) determines the orientation. When the positive charge is at the ortho or para positions,it comes into direct conjugation with the $-NO_2$ group,leading to significant destabilization due to the electron-withdrawing effect. When the positive charge is at the meta position,it is not in direct conjugation with the $-NO_2$ group,making it relatively more stable than the ortho and para intermediates. Therefore,the meta-substituted carbocation is the most stable among the options.

Which of the following carbocations is expected to be most stable?

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