Question

Consider the reaction in column-I and match them with product properties in column-II

Answer 1

(A) -Nucleophilic addition of $C{N}^{-}$ at planar $s{p}^2$ carbon gives cyanohydrin. in this reaction, a racemic mixture is obtained.
(B) The product of the reaction $C{H}_{3}COO{C}_2{H}_5\stackrel{C_2{H}_{5}ONa}{\underset{C_2{H}_{5}OH}{⟶}}\stackrel{\left(i\right)NaB{H}_4}{\underset{\left(ii\right)H{O}^{-}/H_{2}O}{⟶}}$ is a racemic mixture.
(C) Inversion of confuration occur in first step to give a single enantiomer of nitrile which of hydrolysis give a single enantiomer of acid. Hence, the product of the reaction is a single enantiomer.
(D) The reaction $HOC-CHO\stackrel{NaCN\left(aq\right)}{⟶}\stackrel{H^{+}/H_{2}O}{⟶}$ produces three stereoisomers which includes a pair of diastereomers.