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Give two differences between lyophilic a...

Give two differences between lyophilic and lyophobic colloids.

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Collidal solution is a heterogeneous solution which contains particle of intermediate size, i.e., (diameter between 1 and 1000 nm) colloidal is not a substance but it is a state of a substance which depends upon the molecular size. Colloidal solutions are intermediate between ture solution and suspensions. The difference between a lyophilic and lyophobic colloid is their

Lyophobic colloids show

Give one main difference between lyophobic and lyphilic colloids.

Lyophobic colloids are :

Lyophobic colloids are :-

Which one is a lyophobic colloid?

MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
  1. Physical adsorption is :

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

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  3. Give two differences between lyophilic and lyophobic colloids.

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  4. What is heterogeneous catalysis? Give an example.

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  5. The equation for Freundlich adsorption isotherm is

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

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

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  8. CMC (Critical Micelle Concentration) is

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

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

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  11. Lyophilic sols are

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

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  13. Why dows physisoption decrease with increase of temperature ?

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  14. Why are powdered substances more effective adsorbent than their crysta...

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  15. Give the decreasing order of flocculating power of the following ions ...

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  16. Explain the cleansing action of soaps.

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  17. Classify the type of colloidal sol in the following based on the basis...

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  18. What is Hardy- Schulze law?

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  19. Write differences between physisorption and chemisorption.

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  20. Why does bleeding stop by rubbing moist alum?

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