Question

The pH values of three acids A, B and C having equal molar concentrations are 5.0, 2.8 and 3.5 respectively. Arrange these acids in order of the increasing acid strengths.

Answer 1

Acids have a pH value of less than 7. The lower the pH value, the stronger the acid. Hence, the acids in the increasing order of their strengths are as follows:

A < C < B