Why is potassium permanganate used for purifying drinking water?
A. It ***** germs
B. It dissolves the impurities
C. It is a reducing agent
D. It is an oxidizing agent
Correct option (d) It is an oxidizing agent
Explanation:
Potassium permanganate is a point-ofentry treatment method that oxidizes dissolved iron, manganese, and hydrogen sulfide into solid particles that are filtered out of the water. It can also be used to control iron bacteria growth in wells.
