What is homologous series . Write it's characteristics

homologous series is a succession of compound with the exact same functional group and chemical properties that are alike in which the individuals of the series can be branched or even unbranced or contrast by -CH2. The characteristics are):

Members have the same general formula.

Members have common method of preparation.

Members have same functional group.

Members have almost same chemical properties due to same functional group.

Homologous series is defined as a systematic order of structurally similar organic compound containing same functional group in their family and two adjacent members differ in their molecular formula by -CH2 unit.

Characteristics:

1.Various members of homologous series contain same functional group.

2.Various members of homologous series can be represented by common formula.

3. All members of a homologous series have almost similar chemical properties.

4. All members have common method of preparation.

5.Two successive members of homologous series have different chain length or difference in their molecular formula by -CH2 unit.

6.The members of homologous series show different physical properties.