(c) $R - X\underset{KCN}{\overset{\ \ Alcoholic\ \ \ }{\rightarrow}}R - CN\overset{\ \ Dil\ HCl\ \ }{\rightarrow}R - COOH$ alkyl cyanide carboxylic acid
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.