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Define the following terms : (i) Kraft...

Define the following terms :
(i) Kraft temperature
(ii) Peptization
(iii) Electrokinetic potential

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MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
  1. The equation for Freundlich adsorption isotherm is

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

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

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  4. CMC (Critical Micelle Concentration) is

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

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

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  7. Lyophilic sols are

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

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  9. Why dows physisoption decrease with increase of temperature ?

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

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

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  12. Explain the cleansing action of soaps.

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

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  14. What is Hardy- Schulze law?

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  15. Write differences between physisorption and chemisorption.

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  16. Why does bleeding stop by rubbing moist alum?

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  17. Distinguish between the meaning of the terms adsorption and absorption...

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  18. Write on difference in each of the following: (a) Multimolecular col...

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  19. Why does leather get hardened after tanning?

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  20. Lyophilic sols are more stable than lyophobic sols because

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