Question

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

Answer 1

Method: 

i) One tablet (4 mg) is dissolved in 1 litre of water. 

ii) Shaken , left for 10 minutes before consuming.

Reasons: 

i) kills coliform 

ii) easy to use 

iii) hassle free

Precautions: 

i) keep in dry place 

ii) should not be expired 

iii) if water more dirty use 2 tablets and wait for 20 minutes before using.