Question

A solution X has a pH value of 2 and another solution Y has a pH value of 1. Choose the correct answer among the following options:

• A. Solution X has more hydrogen ion concentration than solution Y.
• B. Solution Y has more hydrogen ion concentration than solution X.
• C. Solution X is more acidic than solution Y.
• D. None of the given options are correct.

Answer 1

The correct option is B

Solution Y has more hydrogen ion concentration than solution X.

pH is a measure of hydrogen ion concentration in a solution. Higher the hydrogen ion concentration, lower is the value of pH. Acids which give rise to more hydrogen ions are more acidic than the acids which give less hydrogen ions. Thus, lower the pH, higher is the acidic nature of the solution.

In above question, solution X has higher pH than solution Y. Thus:

- Solution Y is more acidic than solution X.

- Solution Y has more hydrogen ion concentration than solution X.