Question

what is homologous series? State characteristics of homologous series?​

Answer 1

Answer:

the seriesthat consists of organic compounds in which same functional group subtitutes for hydrogen in a carbon chain

Answer 2

According to me :-

Definition :-

A homologous series is a series of hydrocarbons which have similar chemical properties and they share the same general formula. They are organic compounds having similar structure and functional groups. The constituents of the homologous series shoe a gradation in physical properties.

Characteristics of homologous series:

• A group or a series of organic compounds in which each member contains the same characteristic functional group and differs from each other by a fixed unit form a homologous series and therefore its members are known as homologous.
• The members of the homologous series can be represented by a general formula.
• The successive members differ from each other in the molecular formula by a CH2 unit.
• The general formula of all compounds in the series is the same.
• They have the same functional group.
• Their physical properties such as melting point, boiling point, density, generally show a gradual change with increase of molecular formula in the series.

Examples: Alkanes – methane (CH3), ethane (C2H6).