Question

Successive members of homologous series differ from one another in their mass by:

• A. 10 units
• B. 15 units
• C. 20 units
• D. 14 units

Answer 1

The correct option is D 14 units

A series of organic compounds with the same general formula but differ from adjacent members by $"-C{H}_2-"$ group are referred to as homologous series of compounds. Successive members of homologous series differ from one another in their mass by $14units$.

For example: $C{H}_4$ and $C_2{H}_6$ are homologous series. Its molar mass is $16$ and $30gm/mole$ respectively.

Hence, it is differed by unit $14$.

Option D is correct.