MCQ
Which carbonyl compound has maximum dipole moment
  • A

  • B

  • C


Answer

Correct option: D.

d
Double bond oxygen can undergo resonance so that $3$ - membered ring species has $2 \pi- e ^{-}$ and has aromatic character, as a result of this, this species exist in ' $B$ ' form and hence has more dipole because of more charge separation.

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