Identify the compound that exhibits tautomerism.

2-butene

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Lactic acid

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2-Pentanone

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Benzaldehyde

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Solution

The correct option is C 2-Pentanone
Tautomers are constitutional isomers of organic compound that readily interconvert by a chemical reaction called tautomerization. It results in the formal migration of a hydrogen atom or proton accompanied by a switch of single bond and adjacent double bond e.g.Keto enol tautomers in 2-Pentanone.

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Identify the compound that exhibits tautomerism?

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