Which is not a proper resonance structure for acrolein, $C H_{2} = CH - CHO$ ?
(A) (B)
(C) (D)

Question

Which is not a proper resonance structure for acrolein, C H 2 ​ = CH − CHO ? (A) (B) (C) (D)

TestHub · Accepted Answer

The positive charge belongs on carbon and the negative charge on the electronegative oxygen. In (D) the charges are reversed and the $O^{+}$ has only six electrons, so (D) is not a proper contributor.

(A) is the given structure; (B) and (C) are the contributors with $C^{+}$ and $O^{-}$ .

Chemistry - GOC Question with Solution | TestHub

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