Why is alum added to purify water ?
- 2 Answers
- 9081 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 monomer of polyethene?
Explain the Solution ?
what is the formula of diesel,petrol & CNG too?
What are the advantages of soapy detergents over soapless
how to do heavy metal test for colour sample?
Explain the classification of oxides ?
What is weak acid?
Do all explosions produce carbon dioxide or carbon monoxide?
What is mole?
How are pka and strength of a weak acid related?
State beer’s law.
What is glacial acetic acid? What are its uses?
Organic Chemistry 
