Why is alum added to purify water ?
- 2 Answers
- 7913 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
On allowing water to stand in big tanks, the suspended water
subsides at the bottom. The suspended impurities are
immediately coagulated by addition of alum. The precipitate
settles at the bottom dragging bacteria and other tiny
particles with it.
| Is This Answer Correct ? | 29 Yes | 14 No |
Answer / aman
On allowing water to stand in big tanks, there are some light
suspended impurities which don't settle down by itself.Then, alum is being bubbled which make these impurities heavier and settle down at the bottom.
| Is This Answer Correct ? | 7 Yes | 3 No |
What is the principle involved in conductometric titration?
State beer-lambert’s law.
Why is the total eclipse of the earth a rare phenomenon ?
What is pka of acid?
Why does the electric fan cool more efficiently in May than it cools in September?
What is electroplating ?
What variety of carbon is used for refining purposes ?
Explain the Matter?
From which substance are the dues manufactured ?
Explain the Hydrogen and its Compounds ?
what is the name of the material used in making the plates used for serving food in hotels?
What is the acidity of a base
Organic Chemistry 
