JEE Main 2024 Chemistry question
The correct stability order of the following resonance structures of CH₃–CH=CH–CHO is I: CH₃–C̄H–CH=CH–O⁺ (carbanion on the carbon next to CH₃, positive oxygen) II: CH₃–C⁺H–CH=CH–O⁻ (carbocation, negative oxygen) III: CH₃–CH=CH–CH=O (neutral)
Answer: (B)
Solution
Structure III is neutral (non-polar) and has the most covalent bonds, so it is the most stable. Structure II has the negative charge on the more electronegative
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