Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

An organic compound A upon reacting with ${\mathrm{NH}}_3$ gives B ; on heating B gives C . C in presence of KOH reacts with ${\mathrm{Br}}_2$ to give ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2$. A is