Question

CH3CN -----(H2O/H+)----->A ----NH3+heat------->B ---Br2+KOH--------->C
Identify A,B AND C in the rxn.

Answer 1

A is CH3COOH

B is CH3CONH2

C is CH3NH2

Answer 2

Hey dear,

● Answer -
A => Acetic acid
B => Acetamide
C => Methanamine

● Reactions -
Methyl cyanide on hydrolysis gives acetic acid.
CH3CN + 2H2O ---> CH3COOH + NH3

Acetic acid on heating with ammonia gives acetamide.
CH3COOH + NH3 ---> CH3CONH2 + H2O

Acetamide on treatment with Br2/KOH gives methanamine.
CH3CONH2 + Br2 + 4KOH ---> CH3NH2 + K2CO3 + 2KBr + 2H2O

Hope this helps you...