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How will you distiguish between disperse...

How will you distiguish between dispersed phase and dispersion medium in an emulsion ?

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Emulsions are of two types. These are O/W (water in oil type) depending upon the nature of dispersed phase and dispersion medium. The distinction can be made by dilution test, day test and by conductivity test. For details. Consult section25.
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DINESH PUBLICATION-SURFACE CHEMISTRY -SHORT ASNWER TYPE QUESTIONS
  1. What happens when aeledtric field is applied to colloidal solution ?

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  2. What causes Brownian motion in colloidal despersion ?

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  3. How do emulsifiers stabilise emulsion ? Name two emulsifiers.

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  4. Why are some medicines more effective in the colloidal form ?

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  5. Why does leather get hardened after tanning ?

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  6. Cottrell precipitator acts on which of the following principles ?

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  7. How will you distiguish between dispersed phase and dispersion medium ...

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  8. Hardy-schulze rule sates that :-

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  9. It is difficult to stop bleeding from a cut in human body at high alti...

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  10. Why is Fe(OH)(3) colloid positively charged when prepared by adding Fe...

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  11. Why do physisorption and chemisorption behave differently with rise in...

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  12. What happens when dialysis is prolonged ?

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  13. Why do we store silver chloride in dark coloured bottles?

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  14. In the adsorption of oxalic acid on activated charcoal, the activated ...

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  15. Rivers from land, add minerals to sea water. Discuss how ?

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  16. Write differences between physisorption and chemisorption.

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  17. Explain why transition metals and their many compounds act as good cat...

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  18. What role does adsorption play in heterogeneous catalysis ?

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  19. How does a catalyst work?

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  20. Do the vital functions of the body such as digestion get affected duri...

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