Backside displacement is observed in all S_N2 reactions because

MHT CET Chemistry question

Backside displacement is observed in all reactions because

(A)Nucleophiles are electronically attracted to the leaving group
(B)Nucleophiles are electronically repelled by the leaving groupCorrect
(C) reactions always take place through two steps
(D)Attack on a carbocation intermediate is favoured on the opposite side from which the leaving group departs

Answer: (B)

The electron-rich leaving group repels the incoming nucleophile, so attack occurs from the opposite side;

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Question ID VK-043381