Tautomerism takes place in:

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(C) Tautomerism requires the presence of an $\alpha$-hydrogen atom adjacent to a carbonyl group or a similar system that allows for keto-enol intercon

Vedclass · Accepted Answer

$i, iii, iv$

Vedclass · Answer

(C) Tautomerism requires the presence of an $\alpha$-hydrogen atom adjacent to a carbonyl group or a similar system that allows for keto-enol interconversion.$(i)$ $C_6H_5-CH=CH-OH$ is an enol form which can tautomerize to the corresponding aldehyde.(ii) $p$-Benzoquinone has no $\alpha$-hydrogen atoms available for tautomerization.(iii) This structure has $\alpha$-hydrogen atoms at the $CH_2$ group,allowing it to tautomerize to a phenol derivative.(iv) Cyclohexanone has $\alpha$-hydrogen atoms,allowing it to form an enol tautomer.Therefore,compounds $(i), (iii),$ and $(iv)$ exhibit tautomerism.

Similar Questions

For the following four structures $I$ to $IV$,which statement is correct?
$(I)$ $C_2H_5-CH(CH_3)-C_3H_7$
$(II)$ $C_2H_5-CO-CH(CH_3)-C_2H_5$
$(III)$ $CH_3^+$ (Methyl carbocation)
$(IV)$ $C_2H_5-CH(CH_3)-C_2H_5$

Mention the correct relationship between structure $I$ and structure $II$.

Which of the following acids is isomeric with phthalic acid?

What is chain isomerism? Explain by giving an example.

$CH_3CH_2CH = CH_2$ and $CH_3 - CH = CH - CH_3$ show

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