Answer:
Explanation:Potassium permanganate is used as an oxidizing agent in water treatment to remove colour,taste and make some viruses and bacteria inactive.
When you put potassium permanganate in a beaker and add water,its particles randomly. You will observe a purple slowly spreading at the base of the water. The purple solution will slowly spread into the rest of the water until a uniform colouration is form. This process is diffusion.