Multiple choice

Chlorination is a commonly used chemical method for purifying contaminated water. Chlorination is done by adding

  1. sodium chloride

  2. potassium chloride

  3. magnesium chloride

  4. calcium hypochlorite

  5. iron chloride

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

Calcium hypochlorite or bleaching powder is used for chlorination of water.