Question

What is the homologous series of compounds? List any two characteristics of a homologous series

Answer 1

Step 1: Introduction

Homologous series of compound lies in the same family and the molecular formula is differ by one ${\mathrm{CH}}_2$ unit.

Example:

The higher homologous of Ethane $\left({\mathrm{C}}_2{\mathrm{H}}_6\right)$ compound is Propane $\left({\mathrm{C}}_3{\mathrm{H}}_8\right)$ with the difference of one unit of ${\mathrm{CH}}_2$

Step 2: Characteristics of homologous series

• All the members of the homologous series have the same general formula.
• The physical and chemical properties of homologous members are the same.