Question

Why is potassium permanganate used for cleaning water tanks?

Answer 1

it is because it is a good disinfectant

Answer 2

Answer:

Explanation:

(i) Potassium permanganate oxidises dissolved

iron, manganese and hydrogen sulphide into

solid particles.

(ii) KMnO4

is used to remove organic matter from

the water tank by oxidation which also removes

unwanted taste and odour.

(iii) It also kills harmful bacteria and fungi.