Cambridge IGCSE Chemistry · Syllabus 0620 · Organic Chemistry
Homologous Series
What is Homologous Series?
A family of similar compounds with similar chemical properties, due to the presence of the same functional group. Extended candidates additionally describe five general characteristics: same functional group, same general formula, successive members differing by a CH2 unit, a trend in physical properties, and similar chemical properties.
This definition is part of the Organic Chemistry chapter in Cambridge IGCSE Chemistry.