Question

what is homologous series of carbon compounds?

Answer 1

Homologous Series : Homologous series is a group of organic compounds having similar structures and similar chemical properties in which the successive compounds differ by ${ CH }_{ 2 }$ group.
Characteristics of Homologous Series :

All the members of a homologous series can be represented by the same general formula.
Any two adjacent homologous differ by 1 carbon atom and 2 hydrogen atoms in their molecular formula.
The difference in the molecular masses of any two adjacent homologous is 14 units.
All the compounds of a homologous series show similar chemical properties.
The members of a homologous series show a gradual change in their physical properties with increase in molecular mass.

Answer 2

A series of organic compounds in which every succeeding member differs from the previous one by -ch2 or 14 amu.