`CH_(3)CHO+HCHOoverset("dil. NaOH")underset("Heat")rarrAoverset("HCN)underset(H_(3)O^(+))rarrB`
the structure of compound B is

Options

A. `CH_(2)=CH-underset(OH)underset(|)(CH)-COOH`
B. `CH_(2)=CH-underset(CN)underset(|)(CH)-OH`
C. `CH_(2)CH_(2)-underset(OH)underset(|)(CH)-COOH`
D. `CH_(3)-underset(OH)underset(|)(CH)-COOH`

Answer

A

Explanation

`H-overset(O)overset(||)underset(H)underset(|)C+CH_(3)-overset(O)overset(||)C-Hoverset(Dil. NaOH)hArrH-overset(OH)overset(|)underset(H) underset(|)C-CH_(2)-CHO`
`overset(Delta)to CH_(2) underset(A)CH-CHO overset(HCN) underset(H_(3)O^(+))toCH_(2)= underset(B)(CH)- underset(H) underset(|)(CH)-COOH`