Water: A Precious Resource — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7ScienceWater: A Precious Resource1 Mark
MCQ
Water is chlorinated to:
✓
Kill germs
B
Change colour
C
Soften it
D
Improve its taste
✓
Answer
Correct option: A.
Kill germs
Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.
This method is used to kill bacteria, viruses and other microbes in water.
In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, and typhoid.
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