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Why potash alum is added to purify water...

Why potash alum is added to purify water?

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Explore conceptually related problems

Potash alum is used as a

When potash alum is dissolved in water the total number of ions produced is (a) Four (b) Eight ( c) Ten ltBRgt (d) Thirly -two .

Why do we add alum to purify water ?

How do you account for the following: Use of potash alum in the purification of water.

A mixture of ferric alum, chrome alum and potash alum is dissolved in water and treated with an excess of NH_(3) solution annd warmed with a mixture of NaOH and H_(2)O_(2) and filtered. We will get:

Why KMnO_4 is added to purify drinking water ?

Aqueous solution of potash alum is acidic due to the hydrolysis of

Alum helps in purifying water by

Why is alum added to water containing suspended impurities ?

A non-metal used to purify water is ……………………

ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) ( SHORT ANSWER QUESTIONS)
  1. Distinguish between the meaning of the terms adsorption and absorption...

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  2. What are lyophilic and lyophobic colloids ? Give four differences betw...

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  3. Why potash alum is added to purify water?

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  4. The adsorption of solutes from solution by solid adsorbents can be exp...

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  5. Give one difference between gel and sol.

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  6. What are macromolecular and multimolecular colloids? Give one example ...

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  7. What is common in aquasols and solid aerosols ? Also find the point of...

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  8. Does colloidal state represent a different class of substance? Comment...

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  9. Write short notes on Hardy-Schulze's rule

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  10. Write short notes on Peptization

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  11. What is Hardy Schulze's rule ? Justify the use of gelatin as a protect...

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  12. Explain the terms emulsions and micelles. Action of soap is due to emu...

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  13. What are micelles ? Give an example of a micellers system.

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  14. Explain the terms associated colloids and peptization.

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  15. Explain the phenomenon which takes place when ferric hydroxide solutio...

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  16. Explain the terms: interfaces

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  17. Explain the terms: cataphoresis.

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  18. Explain the following: Gold number

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  19. Explain the following: Coagulation

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  20. Explain the following: Flocculating value

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