1.

In the given reaction maximum yield is obtained when (X) is: C_(6)H_(5)COOC_(2)H_(5)+(X)underset((ii)H^(+))overset((i)C_(2)H_(5)Ona)tobeta-ketoester

Answer»

`CH_(3)-underset(CH_(3))underset(|)"CH"-COOC_(2)H_(5)`
`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overdet(|)C-COOC_(2)H_(5)`
`C_(6)H_(5)-underset(CH_(3))underset(|)"CH"-COOC_(2)H_(5)`
`CH_(3)COOC_(2)H_(5)`

Answer :D


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