Which of the following pairs represent resonance structures ? (a) and (b) and (c) and (d) and

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ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB

ChemistryMediumsingle choice

Which of the following pairs represent resonance structures ?

(a) structure and

(b) structure and

(d) structure and

Answer:

Solution:

(a) allyl anion and (c) the enal and its $C^{+} - O^{-}$ form differ only in electron positions.

(b) keto-enol tautomers (an H moves). (d) are two drawings of the same homoallyl cation, not two contributors.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT

⏱ 2mℹ️ Source: QB

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