Question

Explain Isomerism.

Answer 1

Amines exhibit following types of isomerism :

(i) Chain isomerism : This is due to difference in the carbon chain of the two isomers.

\(\underset{n-Butyl\,amine}{CH_3.CH_2.CH_2.CH_2.NH_2}\,\,\,\,\underset{Isobutyl\,amine}{(CH_3)_2CH.CH_2.NH_2}\)

(ii) Position isomerism : This is due to the difference in the position of the amino group.

  

(iii) Metamerism : This is due to the difference in the nature of the alkyl groups, e.g.

(iv) Functional isomerism : This is due to the difference in the nature of the functional group (amino group), e.g

Answer 2

Isomerism: the existence of molecules that have the same numbers of the same kinds of atoms (and hence the same formula) but differ in chemical and physical properties.