Explain how does the presence or absence of hydrogen on N of amines affect the modes of their reactions with nitrous acid?

272. Why does bromination of aniline, even under very mild conditions give 2, 3, 5-tribromo aniline instantaneously?

Why is an amide more acidic than an amine?

mention the chief use of quaternary ammonium salts derived from long chain amines.

How can you convert aniline to 2,4,6 Tribromo aniline ?

Arrange the isomeric compounds:
(i) Ethyldimethyl amine
(ii) n-butyl amine
(iii) diethyl amine
in order of decreasing boiling point and give reason.

Explain the following general order of basicity in aqueous solution:
R₂NH > RNH₂ > R₃N > NH₃

Explain the following general order of basicity in aqueous solution:
R₃N ,R₂NH , RNH₂
What will be the basic strength order of these amines in gas phase?

How can you find out whether a given amine is a primary amine? Write the chemical reaction involved in the test you perform.

How can you separate a mixture of primary, secondary and tertiary amines? Write chemical reactions involved in the process.