Explain homologous series in detail 

Homologous series refers to the series of organic compounds having same general formula and similar chemical properties.
Each member of the homologous series differ by ?CH2?from the next higher or lower member.
The homologous series of first four members of alkanes are shown as:
CH4???C2H5???C3H8? C4H10
Methane? Ethane? Propane? Butane

 

A homologous series is a series of compounds with the same general formula, usually varying by a single parameter such as the length of a carbon chain. Compounds within a homologous series typically have a fixed set of functional groups that gives them similar chemical and physical properties.

For example, methane, ethane, propane, butane, etc. are all part of the alkane homologous series. The general formula of this series is Cn​H2n+2​.
 

A homologous series is a series of organic compounds having similar chemical properties due to the presence of same functional group. The members of a homologous series are arranged in order of their increasing molar masses. Two consecutive members of a homologous series differ by a CH₂ unit and a mass of 14 amu.

given down- a homologous series of alcohols wherein the members of the series are arranged in increasing order of their molar masses.

Methanol - CH₃OH

Ethanol -CH₃CH₂OH

Propanol -CH₃ CH₂CH₂OH

Butanol -CH₃ CH₂CH₂ CH₂OH

Pentanol -CH₃ CH₂CH₂ CH₂ CH₂OH

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