Multiple choice

The presence of which of the following ions gives an acid solution its acidic properties?

  1. Sulphur ions

  2. Potassium ions

  3. Hydrogen ions

  4. Copper ions

  5. Magnesium ions

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. The presence of hydrogen ions gives an acid solution its acidic properties. It is because most of the acids react with metals to form salts and evolve hydrogen gas.