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Water Safety

Question
CBSEENHO12027011
Wired Faculty App

People of Basra village use alum to make their water potable. Convince them to use chlorine tablets instead. Tell them about the procedure to use these tablets, two advantages of using the tablets and two precautions while using them.

Solution

Method:

  1. One tablet (4mg) is dissolved in 1 litre of water.
  2. Leave for 10 minutes before consuming.

Advantages of using chlorine:

  1. Chlorine Kills coliform
  2. Easy to use
  3. Quick

Precautions:

  1. Keep in dry place
  2. Should not be expired
  3. If water is more dirty, use 2 tablets and wait for 20 minutes before using

Some More Questions From Water Safety Chapter

For purifying her drinking water, Geeta has to buy either reverse osmosis filter or an ordinary electric filter. Help her take a decision by giving her all the necessary information she would require about these filters.

People of Basra village use alum to make their water potable. Convince them to use chlorine tablets instead. Tell them about the procedure to use these tablets, two advantages of using the tablets and two precautions while using them.

During rainy season almost everyone in a specific locality suffers from stomach ailments. You have suggested them to use chlorine tablets to make water safer for drinking. Write the method and give two reasons for your suggestion. Also, write two precautionary measures while using these tablets.

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