Question

Write the molecular formula of the 2nd and 3rd member of the homologous series whose first member's ethane

Answer 1

QUESTION :

To write the molecule formula of first 2nd and 3rd member of homologous series of Ethane.

ANSWER :

Defination of Homologous series :

A Homologous series is a group of organic compounds having similar structure and similar chemical properties in which the successive compounds differ by CH2 group.

◆ Ethane have single C - C bond ,so it comes under Alkanes.

If Ethane is the first member of the homologous series then the 2nd and 3rd members are :

1st member : Ethane -->[ C2H6 ]

So,

2nd member : Propane --> [ C3H8]

3rd member : Butane --> [ C4H10]