Question

Which gives lactic acid on hydrolysis after reacting with `HCN`?
A. `HCHO`
B. `CH_(3)CHO`
C. `C_(6)H_(5)CHO`
D. `CH_(3)COCH_(3)`

Answer 1

Correct Answer - B
`underset("Acetaldehyde")overset(O) overset(||)(CH_(3)-C-H+)HCN to CH_(3) overset(OH) overset(|) underset(H)underset(|)(CH_(3)-C-CN)overset (H_(2)O)to underset("Lactic acid") underset(H) underset(|) overset(OH) overset(|)(CH_(3)-C-COO)H`