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Q. Acid-hydrolysis of benzonitrile forms

NTA AbhyasNTA Abhyas 2020Amines

Solution:

Acid-hydrolysis of benzonitrile forms benzoic acid.

$C_{6}H_{5}CN\overset{H_{3} O^{+}}{ \rightarrow }C_{6}H_{5}CONH_{2}\overset{H_{3} O^{+}}{ \rightarrow }C_{6}H_{5}COOH+NH_{4}^{+}$

Note: Alkaline-hydrolysis of cyanide forms benzoate and $NH_{3}$ .

$C_{6}H_{5}CN\overset{H_{2} O / O H^{-}}{ \rightarrow }C_{6}H_{5}CONH_{2}\overset{H_{2} O / O H^{-}}{ \rightarrow }C_{6}H_{5}COO^{-}+NH_{3}$