C_3H_4 + H_2O xrightarrow[333 K]{Hg^{2+} / H | vedclass

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(C) The reaction of propyne $(C_3H_4)$ with water in the presence of $Hg^{2+} / H^{+}$ at $333 \ K$ is an electrophilic addition reaction.
First,the

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unsaturated alcohol,ketone

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(C) The reaction of propyne $(C_3H_4)$ with water in the presence of $Hg^{2+} / H^{+}$ at $333 \ K$ is an electrophilic addition reaction.
First,the hydration of the alkyne leads to the formation of an unstable enol intermediate,$[X]$,which is prop$-1-$en$-2-$ol (an unsaturated alcohol).
This enol $[X]$ then undergoes tautomerisation to form a more stable keto form,$[Y]$,which is propanone (a ketone).
Therefore,$[X]$ is an unsaturated alcohol and $[Y]$ is a ketone.

$C_3H_4 + H_2O \xrightarrow[333 \ K]{Hg^{2+} / H^{+}} [X] \rightleftharpoons{\text{Tautomerisation}} Y$
$X$ and $Y$ are respectively

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$C_3H_4 + H_2O \xrightarrow[333 \ K]{Hg^{2+} / H^{+}} [X] \rightleftharpoons{\text{Tautomerisation}} Y$ $X$ and $Y$ are respectively