Question

Two chemicals used in water purification are __________ and _________.

Answer 1

Answer:

Ozone And Chlorine

Explanation:

Answer 2

Two chemicals used in water purification is chlorine and Alum.

Explanation:

The chlorine is added as sodium hypochlorite to the water for purification. The potassium permanganate added to the water, till the water turns to light pink.

The chlorine in terms of bleaching powder is added to the water which turns the water in to clear form. It soaks all the impurity. The alum is the sulfate salt, alum is called as aluminum with general formula.