1.

CH_(3) - CH_(2) - C equiv CH underset(H_(2)SO_(4))overset("HgSO"_(4))(rarr) A, the compound A is

Answer»

`CH_(3) - CH_(2) - OVERSET(O)overset(||)(C ) - CH_(3)`
`CH_(3) - CH_(2) - CH_(2) - `CHO
`CH_(3) - CH_(2) -CH_(2) - `COOH
`CH_(3) CH_(2) CH_(2) CH_(2) `OH

Solution :Oxymercuration of alkynes is HYDROLYSIS of alkynes in accordance with electrophilic addition mechanism. The RESULTING ENOL in this case tautomerizes to form 2- butanone.


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