Question

Write a short note on pH. [2 mark]

Answer 1

• The pH is the measure of how acidic or basic is an aqueous solution. [0.5 mark]
• It is measured in terms of hydrogen ion concentration in the solution. [0.5 mark]
• The pH values range from 0 to 14. The values less than 7 represent an acidic solution, above 7 indicate a basic solution and 7 is neutral. [1 mark]