Question

In the homologous series of alkane, the boiling point increases with :

• A. increase in volume
• B. decrease in mass
• C. increase in mass
• D. decrease in number of atoms

Answer 1

The correct option is C increase in mass

Within the alkane homologous series, many physical properties such as boiling point gradually increase with increasing mass. For example, ethane $\left(C_2{H}_6\right)$ has a higher boiling point than methane $\left(C{H}_4\right)$.