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Explain the following terms : (i) "Pep...

Explain the following terms :
`(i) "Peptization"" "(ii)"Loyphobic colloids"" "(iii)"Dialysis"`

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MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
  1. What are protective colloids? How are the colloids stabilised? Explain...

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  2. Give two differences between macromolecular colloids and associated co...

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  3. Explain the following terms : (i) "Peptization"" "(ii)"Loyphobic co...

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  4. What are associated colloids ?

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  5. Give reason why a finely divided substance is more effective as an ads...

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  6. What is an adsorption isotherm? Describe Freundlich adsorption isother...

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  7. What is the difference between oil/water (O/W) type and water/oil (W/O...

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  8. Physical adsorption is :

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  9. Give one example of oil in water type emulsion.

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  10. Give two differences between lyophilic and lyophobic colloids.

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  11. What is heterogeneous catalysis? Give an example.

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  12. The equation for Freundlich adsorption isotherm is

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  13. What is 'Tyndall effect' ? Name two mixtures which show this effect.

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  14. Define the following terms : (i) Kraft temperature (ii) Peptizati...

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  15. CMC (Critical Micelle Concentration) is

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  16. When negatively charged colloids like As(2)S(3) sol is added to positi...

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  17. (a) In reference to Freundlich adorption isotherm write the expression...

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  18. Lyophilic sols are

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  19. (a) In reference to Freundlich adorption isotherm write the expression...

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  20. Why dows physisoption decrease with increase of temperature ?

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