A homologous series is a group of organic compounds having same functional group and similar chemical properties in which the successive compounds differ by CH, group. They can be represented by the same general formula.
Homologous Series of Alkanes: All the alkanes have similar structures with single covalent bonds and show similar chemical properties. Therefore, alkanes can be grouped together in the form of a homologous series. The first six members of the homologous series of alkanes are given in the following table:
