JEE Main Chemistry question

Acetophenone, when reacted with the base sodium ethoxide (C₂H₅ONa), yields a stable compound (by base-catalysed self-aldol condensation with loss of water) having the structure

(A)PhC(CH₃)=CH–CO–Ph (dypnone, a chalcone-type conjugated enone)Correct
(B)A simple β-hydroxyketone (uncondensed aldol adduct)
(C)PhCH₂CH₂COPh (the saturated, non-conjugated analogue)
(D)An ester-type product

Answer: (A)

Solution

Under basic conditions, the enolate of one acetophenone molecule attacks the carbonyl of a second, and

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Question ID VK-140149