Structure of $A$ and the type of isomerism in the above reaction are respectively:
$C H_{3} - C \equiv C H 40 % H_{2} S O_{4} - ------ \to 1 % H g S O_{4} A I s o m e r i s a t i o n - ------- \to C H_{3} C O C H_{3}$

prop-1-en-2-ol, metamerism

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prop-1-en-2-ol, tautomerism

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prop-2-en-2-ol, cis and trans isomerism

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prop-2-en-1-ol, tautomerism

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Solution

The correct option is C prop-1-en-2-ol, tautomerism
Structure of $A$ and the type of isomerism in the above reaction are Prop-1-en-2-ol, tautomerism respectively. Enol form tautomerises into keto form.
$C H_{3} - C \equiv C H 40 % H_{2} S O_{4} - ------ \to 1 % H g S O_{4} C H_{3} - C | OH = C H_{2} A I s o m e r i s a t i o n - ------- \to C H_{3} C O C H_{3}$

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Similar questions

Propanone and prop-2-en-1-ol are examples of which type of isomerism?

Which of the following reagents could be used to distinguish between prop-2-en-1-ol and propan-1-ol?

Write structures of the compounds whose IUPAC names are as follows.
(a). 2-methylbutan-2-ol

(b). 1-phenylpropan-2-ol

(c). 3,5-dimethylhexane-1,3,5-triol

(d). 2,3-diethylphenol

(e). 1-ethoxypropane

(f). 2-ethoxy-3-methylpentane

(g). Cyclohexylmethanol

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(j). 3-chloromethylpentan-1-ol

C H_{3} - O H | C H - C H_{2} - C H_{3} A l_{2} O_{3} - -- \to 573 K C H_{3} - C H = C H - C H_{3}

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