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Chemistry Question on Amines

The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is

A

methyl amine

B

ethyl amine

C

diethyl amine

D

triethyl amine

Answer

diethyl amine

Explanation

Solution

Secondary (2∘)(2^{\circ}) amines (aliphatic as well as aromatic) react with nitrous acid (HNO2)(HNO_2) to form N-nitrosoamines. (C2H5)2(2∘amine)NH+HONO(nitrous acid) −>(C2H5)2N−N=O+(N-nitrosodiethylamine)H2O\underset{(2 ^{\circ} \text{amine)}}{ {(C2 H5)2}} NH + \underset{\text{(nitrous acid) }}{ {HONO}} { ->} \underset{\text{(N-nitrosodiethylamine)}}{ {(C2 H5)2 N-N = O +}} { H2O}