question_answer

Benzamide can be converted into benzonitrile with

A) \[{{H}_{3}}{{O}^{+}}\]                                   

B) \[O{{H}^{-}}/{{H}_{2}}O\]

C) \[KCN\]                               

D) \[{{P}_{2}}{{O}_{5}}\]

Correct Answer: D

Solution :

                With\[{{P}_{2}}{{O}_{5}},\]benzamide loses a water molecule and gives benzonitrile. Here,\[{{P}_{2}}{{O}_{5}}\]is a dehydrating agent.