Homologous series has four features :

• Same functional group

• Same general formula

• Same chemical reaction

• Different physical properties

• All

Homologous series ?

• Heptane

• Metylhexena

• Butane

• Propene

Different features classified as homologous series

• General formula

• Chemical reaction

• Functional group

• Physical properties

Alkene

• Carbon ii triple bond

• None

• Carbon ii double bond

• No carbon

Carboxylic acid

• Carboxamide

• Carboalkoxy

• Carboxyl

• Carbonyl

Nitrile

• Carbon

• Cyano

• CN

Alkane

• CnH2n

• CnH2n+1

• CnH2n+2

Alkoxy

• CH2

• COC

• COC

• CH4

Aromatic compound

• Carbon ring

• Benzene ring

• Pentene ring

• Naphtalena

Amine

• Amino

• Amide

• Carboxamine

• Carbon