But-1-yne on reaction with dil. H_2SO_4 in th | vedclass

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(A) The hydration of alkynes in the presence of $Hg^{2+}$ and $H_2SO_4$ follows Markovnikov's rule. The reaction proceeds as follows:$CH_3-CH_2-C \equ

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Butan$-2-$one

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(A) The hydration of alkynes in the presence of $Hg^{2+}$ and $H_2SO_4$ follows Markovnikov's rule. The reaction proceeds as follows:$CH_3-CH_2-C \equiv CH + H_2O \xrightarrow{Hg^{2+}, H_2SO_4, 333 \ K} [CH_3-CH_2-C(OH)=CH_2]$This enol intermediate undergoes tautomerization to form a stable ketone:$[CH_3-CH_2-C(OH)=CH_2] \rightleftharpoons CH_3-CH_2-CO-CH_3$ (Butan$-2-$one).

But$-1-$yne on reaction with dil. $H_2SO_4$ in the presence of $Hg^{2+}$ ions at $333 \ K$ gives:

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