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B
CH3−C||O−CH3
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C
CH3−CH2−CH2SO3H
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D
CH3CH2CH3
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Solution
The correct option is CCH3−C||O−CH3
The major product obtained by the treatment of propyne with aqueous H2SO4 in the presence of HgSO4 is acetone. CH3C≡CHH2SO4−−−−→HgSO4CH3CHOH=CH2tautomerization−−−−−−−−−−→CH3−CO−CH3 A molecule of water is added acros carbon carbon tripple bond to forms enol which tautomerizes to ketone.