MHT CET Chemistry question

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

(A) make ring electron rich at ortho and para position
(B) withdraws from meta position
(C) denotes at meta position
(D) withdraws from ortho/para positonsCorrect

Answer: (D)

Solution

NO2 is a strong electron-withdrawing group and withdraws electrons from the ortho and para positions (by -I and -R), which stabilises the carbanion (Meisenheimer) intermediate

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Question ID VK-043680