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Chemistry Question on Amines

In the following reaction sequence, Ethyl amine \ce−>[HNO2]A\ce−>[PCl5]B\ce−>[NH3]C\ce{->[HNO_2]} A \ce{->[PCl_5]}B \ce{->[NH_3]} C the compound ′C′'C' is

A

CH3NH2CH_3NH_2

B

C2H5NH2C_2H_5NH_2

C

CH3CH=NHCH_3 CH = NH

D

(CH3)2NH(CH_3)_2 NH

Answer

C2H5NH2C_2H_5NH_2

Explanation

Solution

C2H5NH2ethyl amine \ce−>[HNO2]C2H5OHethanol (A)\ce−>[PCl5][−POCl3−HCl]C2H5Clethyl chloride (B)\ce−>[NH3][−HCl]C2H5NH2ethyl amine (C)\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}}