Question

Write the defination of homologus series and their characteristics with examples..​

Answer 1

ANSWER:

Definition:

In organic chemistry, a homologous is a series of compounds with the same functional group and similar properties in which the members of the series differ by the number of repeating units they contain.

Characteristics and properties of homologous series:

1. It can be represented by the same general formula.
2. It have the same functional group.
3. The successive members differ in their molecular formula by $CH_{2}$ group, they differ in molar weight by 14 units.

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Answer 2

homologus series is a sequence of compound with the same functional group and also having same chemical properties in which the members of series may be branched or unbranched .

some important characteristics of homologus series are as follow :-

* members are of same general formula.

* due to some functional group members mainly have similar properties.

* they have same functional groups.

* members have common general method of preparation

example

methane , ethane, propane have are part of alkane homologus series .

methane= CH4

ethane= CH3CH3

propane=CH3CH2CH3

hope it will help you!