The number of hydrogen atoms attached to nitrogen
atom also decides the course of reaction of amines; that is why primary
(–NH2), secondary 
N
H  and tertiary amines 
N
differ in many
reactions Moreover, amines behave as nucleophiles due to the presence
of unshared electron pair Some of the reactions of amines are described
below:
1 Basic character of amines
Amines, being basic in nature, react with acids to form salts