Which of the following is an incorrect relati | vedclass

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(D) In option $A$,the structures represent resonance forms of aniline.In option $B$,cyclohexadienone and phenol are tautomers (keto-enol tautomerism).

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(D) In option $A$,the structures represent resonance forms of aniline.In option $B$,cyclohexadienone and phenol are tautomers (keto-enol tautomerism).In option $C$,the structures represent resonance forms of a thioaldehyde anion.In option $D$,the structures shown are resonance structures of a protonated ester,not tautomers. Tautomerism involves the migration of an atom (usually hydrogen) between two polyatomic groups,whereas resonance involves only the movement of electrons. Therefore,the relation given in $D$ is incorrect.

Which of the following is an incorrect relation between the given pairs?

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