Replacement of one hydrogen atom of
ammonia gives rise to structure of the type R-NH2, known as primary amine Secondary amines are characterised by the structure R2NH or R-NHR¢¢¢¢¢ and tertiary
amines by R3N, RNR¢¢¢¢¢R¢¢¢¢¢¢¢¢¢¢ or R2NR¢ ¢ ¢