Question

Suggest a chemical test to distinguish between the following pairs of compounds:

a. Aniline and N-Ethyl aniline

b. N-Methyl propan-2-amine and N-Ethyl-N- Methyl ethanamine

c. Aniline and Butan-2 amine

Answer 1

a)

aniline gives carbylamine test while N-ethyl aniline does not

b) 

While -

c) Aniline and butane-2-aniline can be distinguish by A20 - dyl test, only aniline gives positive A20-dyl test while butane-2-aniline does not.