Question

What happens when crystals of potassium permanganate is dissolved in 100 ml water?

Answer 1

Potassium permanganate crystals are usually used in the purification of the water.

Explanation:

• there is a change in the colour of potassium permanganate crystals when the are dissolved in water.

• This is due to the presence of the par manganate Ion which is violet and purple in colour. The more the density of the crystals the more is the  darkness of the  colour which is formed after dissolving. Crystals of potassium permanganate kills microorganism which is present in water and hence used as disinfectant.

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