Which of the following is the most unstable c | vedclass

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(C) The stability of a carbocation is increased by electron-donating groups $(EDG)$ and decreased by electron-withdrawing groups $(EWG)$.$-OCH_3$ acts

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(C) The stability of a carbocation is increased by electron-donating groups $(EDG)$ and decreased by electron-withdrawing groups $(EWG)$.$-OCH_3$ acts as an $EDG$ (via resonance),while $-NO_2$ is a strong $EWG$ (via both inductive and resonance effects).In option $A$,the $-OCH_3$ group is directly attached to the cationic center,providing resonance stabilization.In option $B$,the $-NO_2$ group is at the ortho position,exerting a strong destabilizing electron-withdrawing effect.In option $C$,there are two $-NO_2$ groups present,which are both strong electron-withdrawing groups. The presence of two $-NO_2$ groups makes this carbocation the most unstable due to the intense electron-withdrawing effect,which destabilizes the positive charge.

Which of the following is the most unstable carbocation?

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