Chemistry - Carboxylic Acid & its derivatives Question with Solution | TestHub

Consider the following reactions. From these reactions which reaction will give carboxylic acid
as a major product ?
(A) $\mathrm{R}-\mathrm{C}\equiv \mathrm{N}\underset{\text{ mild condition }}{\overset{\text{ (i) }{\mathrm{H}}^{+}/{\mathrm{H}}_2\mathrm{O}}{\to }}$
(B) $\mathrm{R}-\mathrm{MgX}\underset{\text{ (ii) }{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\text{(i) }{\mathrm{CO}}_2}{\to }}$
(C) $\mathrm{R}-\mathrm{C}\equiv \mathrm{N}\underset{\text{ (ii) }{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\text{(i) }{\mathrm{SnCl}}_2/\mathrm{HCl}}{\to }}$
(D) $\mathrm{R}\cdot {\mathrm{CH}}_2\cdot \mathrm{OH}\stackrel{\mathrm{PCC}}{\to }$
(E)

Choose the correct answer from the options given below: