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Replacement of Cl of chlorobenzene to give phenol requires drastic conditions. But chlorine of 2,4-dinitrochlorobenzene is readily replaced because

(a) NO2 donates e- at meta position

(b) NO2 withdraws e from ortho/para positions

(c) NO2 make ring electron rich at ortho and para

(d) NO2 withdraws e from meta position.

1 Answer

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Best answer

Correct option (b) NO2 withdraws e from ortho/para positions

Explanation :

Withdrawal of electrons by - NO2 groups from ortho/para positions cause easier removal of - Cl atom due to the development of positive charge on o- and. p- positions.

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