`CH_(3) CO_(2) C_(2) H_(5)` on reaction with sodium ethoxide in ethanol gives `A`, which on heating in the presence of acid gives `B` compound `B` is

Options

A. `CH_(3)COCH_(2)COOH`
B. `CH_(2)COCH_(3)`
C.
D.

Answer

B

Explanation

`CH_(3)COOC_(2)H_(5)+CH_(5)-overset(O)overset(||)(C)-OC_(2)H_(5)overset(C_(2)H_(5)ONa)to`
`CH_(3)-overset(O)overset(||)(C)-CH_(2)-COOC_(2)H_(5)overset(H^(+))to`
`CH_(3)-COCH_(2)COOHoverset("Heat")toCH_(3)-overset(O)overset(||)(C)-CH_(3)+CO_(2)`
`beta`-Keto acids, on heating undergo decarboxylation