Question

Write the chemical formula of two consecutive homologous of organic compounds having functional group - OH. 

What happens to the (i) boiling point and (ii) solubility of organic compounds of a homologous series as the molecular mass increases?

Answer 1

The general formula of the homologous series of the compound -OH group is C_nH_2n+1OH.

The two consecutive homologous are: Methanol (CH₃OH) and ethanol (C₂H₅OH).

1. As the molecular mass increases in homologous series, the boiling point also increases.
2. The solubility of an organic compound decreases with increase in molecular mass.