Isomerism exhibited by different amines are:
(a) Chain isomers, i.e have different carbon chains, (a) and (b), © and (d)
[as discussed in part (i) and (ii)]
(b) Position isomers, i.e. functional group occupy different positions, (b) and ©, (b) and (d), (a) and (d).
© Metamers, i.e. different alkyl groups are attached to the same functional group, (e) and (f), (g) and (e).
(d) Functional isomers, i.e. they have different
functional groups. All the three categories (1°, 2° and 3°) of amines are the functional isomers of each other.