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Question

Propyne HgSO4+H2SO4(1%)−−−−−−−−−−−−→P

Identify the product P.

A
CH3CH2CH=O
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B
CH3C||OCH3
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C
CH3CH2CH2SO3H
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D
CH3CH2CH3
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Solution

The correct option is C CH3C||OCH3

The major product obtained by the treatment of propyne with aqueous H2SO4 in the presence of HgSO4 is acetone.
CH3CCHH2SO4−−−HgSO4CH3CHOH=CH2tautomerization−−−−−−−−−CH3COCH3
A molecule of water is added acros carbon carbon tripple bond to forms enol which tautomerizes to ketone.

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