Question

What is a homologous series? Explain with an example.

Answer 1

1. A group of compounds having similar structures and chemical properties but their successive compounds differ by a CH₂ group is called a homologous series.
2. Example: Alkanes have similar structures and similar chemical properties, so they can be grouped together to form a homologous series. The general formula of the homologous series of alkanes is C_nH_2n+2, where n is the number of carbon atoms in each molecule.