Why is alum added to purify water ?
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 |
Explain the term aliquot and diluent?
Of what substance are lead pencils made ?
Which gas used for purifying, air in underground enterprises ?
can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification
What is Distillation ?
At what temperature does mercury freeze ?
What are the electrodes used in the measurement of ph for the determination of pka?
Why metallic tools used by blacksmiths have wooden handles ?
What is the prime constituents of cement?
Explain the Modern Atomic Theory ?
How many elements have been discovered on the Periodic Table?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?