Question

In the following reaction sequence,
Ethyl amine $ \ce{->[HNO_2]} A \ce{->[PCl_5]}B \ce{->[NH_3]} C $
the compound $ 'C' $ is

• A. $ CH_3NH_2 $
• B. $ C_2H_5NH_2 $
• C. $ CH_3 CH = NH $
• D. $ (CH_3)_2 NH $

Answer 1

Answer: (B)

$\underset{\text{ethyl amine }}{{C_{2}H_{5}NH_2}}\ce{->[HNO_2] }\underset{\text{ethanol (A)}}{{C_2H_5OH}} \ce{ ->[{PCl_5}][{-POCl_3 - HCl}] }\underset{\text{ethyl chloride (B)}}{{C_2H_5Cl}} \ce{ ->[{NH_3}][{-HCl}] }\underset{\text{ethyl amine (C)}}{{C_2H_5NH_2}}$