Potable Water
Potable Water: Overview
This topic covers concepts, such as, Treatment of Polluted Water, Filtration of Polluted Water, Chlorination of Polluted Water, Water Purification & Potable Water etc.
Important Questions on Potable Water
Sewage and other waste water of towns and cities is processed for purification before letting it into a water body to prevent _____ of water.

How the water pollution becomes a threat to the aquatic living things?

Sewage water can carry micro-organisms that spread diseases.

Name the process in which the water is usually sprayed through air.

In this process of purification of water, bleaching powder is added.

The water which is used for drinking purpose is known as

Which of the following method is used to kill the germs present in water?

Give a one-word answer for the following.
Which chemical is commonly added to disinfect water at home?
(Hint: It is recognised for its pungent, irritating odour in its gas form.)

Name the following.
Adding chlorine tablets to water. (Greasing / Galvanisation / Chlorination)



Why should drinking water be chlorinated? Are there any harmful effects of using water that has been chlorinated?

Describe the different types of water purification before its distribution in the town.


Name this:
Insoluble floating impurities in water are removed with this process.

Adding chlorine to water to kill disease-carrying germs is called _____.

Adding chlorine to the water to kill disease germs is called _____.



