Question

Choose the correct answer from the options given below

To increase the pH value of a neutral solution, we should add:

1) an acid

2) an acid salt

3) an alkali

4) a salt

Answer 1

an alkali

The lower range of pH scale (1 to 6) represents acidic nature, while upper range of pH scale (8 to 14) represents alkaline nature. Therefore, to increase the pH value of a neutral solution (pH = 7), we should add an alkali.