Q. 75.0( 2 Votes )

What is meant by

Answer :

The series which consists of similar structures and similar chemical properties in which the successive compounds differs by a CH2 group is termed as homologous series.

The two characteristics of homologous series are as follows:


1. The members of the homologous series consists of same general formula such as Alkanes have general formula CnH2n+2


2. The two adjacent homologues have a difference of molecular mass of 14 u.


The compounds can be classified as follows:


Propene C3H6 , Butene C4H8, Pentene C5H10 belongs to Alkenes.


Propyne C3H4 , Butyne C4H6 and Pentyne C5H8 belongs to alkyne group.


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