Potassium Permanganate is used for purifying drinking water, because________
A). It is a reducing agent
B). It is an oxidising agent
C). It is a sterilising agent
D). It dissolves the impurities of water
It is an oxidising agent
Potassium permanganate is a point-of-entry 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.
1. Which of the following is not a method of estimating national income?
2. White phosphorus is always kept under
3. Which one of the following is used as preservative for foodstuff ?
5. Which one of the following elements is an example of noble gas ?
7. The anode of a dry cell is made up of
8. In a nuclear reactor the material use for absorbing neutrons is
9. Question 2.2:Give an example of solid solution in which the solute is a gas.