In case of aromatic carboxylates, the Hunsdiecker reaction is possible when the aromatic ring contains ________ groups.

electron-withdrawing

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electron-replacing

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electron-donating

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none of these

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Solution

The correct option is A electron-withdrawing
In Aromatic carboxylates, the Hunsdiecker reaction is possible when an aromatic ring contains an electron withdrawing group.
Because carboxylate ion will be the resonance with Benzene ring and can't form free radical. Electron-withdrawing group makes easier by pulling electron towards it and forms intermediate easily.

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