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KCl is added to Fe(OH)3 sol?...

`KCl` is added to `Fe(OH)_3` sol?

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`Fe(OH)_3` gets coagulated.
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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. What happens when persistent dialysis of a colloidal solution is carri...

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  2. What happens when a beam of light is passed through As2S3 sol?

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  3. KCl is added to Fe(OH)3 sol?

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  4. What is the main cause of charge on a colloidal solution?

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  5. How are gold number and protective power of colloid related?

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  6. What is demulsification ?

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  7. Give four uses of emulsions.

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

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  9. How does soap help in washing clothes?

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  10. What modification can you suggest in the Hardy-Schulze law?

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  11. Why is it essential to wash the precipitate with water before estimati...

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  12. Why lyophilic colloidal sols are more stable than lyophobic colloidal ...

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  13. How can a colloidal solution be distinguished from the true solution o...

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  14. Colloidal solution can be made in water and in air as media. What dist...

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  15. Of NH3 and N2 which gas will be adsorbed more readily on the surface o...

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  16. What is the basic difference between adsorption and absorption.

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  17. What is meant by 'shape-selective catalysis' of reactions ?

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  18. What are lyophobic colloids? Give one example for them.

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  19. How can we make dialysis fast?

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  20. What is meant by Gold number of starch is 10-15?

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