Write the name and formula of the 2nd member of homologous series having general formula CnH2n.

The 2nd member is propene, C3H6

The 2nd member is propyne, C3H4.

C3H8,C4H10 --->Alkanes C5H10 ,C8H16 ---> Alkenes C6H10,C7H12 ---> Alkynes

A group of organic compounds having the same functional group and similar structures in which the successive members differ by CH2 group is called homologous series. Alkynes:C3H4,  C4H6,  C5H8 Alkenes: C3H6, C4H8,  C5H10

Analogous organs are those organs which have different structural designs and origin but perform similar functions. Homologous organs are those which have the same basic structural design and origin but perform...

The correct answer is (A) ethyne

Homologous Organs - Organs with similar basic structure/ origin but modified to perform different functions.  Example: forelimbs of various vertebrates ( or any other)  Wings of a butterfly and the wings...

Hi Anuja, You made a mistake in your answer as Propene is the right answer. I have updated your answer.