for disinfecting water useful substance is
1. washing soda
2.common alum
3.baking soda
4.Bleaching powder
give explanation
Answers
Answered by
7
Answer:
common alum
Explanation:
hoppe so it will help you
Answered by
0
The correct answer will be option b.
- Alum is one of the oldest methods of ensuring clean drinking water. A pinch of alum added to the water removes solid impurities. Once the sediment is thrown away, the water is boiled to kill the bacteria.
- Alum helps purify water through aluminum, which helps coagulate mud particles.
- Due to the high charge of the aluminum ion (+3), it helps small particles in suspended solids to clump together until they are large enough to sink and be removed.
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