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What happens when aeledtric field is app...

What happens when aeledtric field is applied to colloidal solution ?

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The charged colloidal particles start moving towards the oppositely charged electrode.
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PRADEEP-SURFACE CHEMISTRY -SHORT ANSWER QUESTIONS
  1. What is collodion ?

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  2. Why do we add alum to purify water ?

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  3. What happens when aeledtric field is applied to colloidal solution ?

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  4. What causes Brownian motion in colloidal dispersion?

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  5. A colloid is formed by adding FeCl(3) in excess of hot water. What wil...

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

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

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  8. Why does leather get hardened after tanning ?

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  9. How does the precipitation of colloidal smoke take place in Cottrell p...

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

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  11. On the basis of Hardy-schulze rule explain why the coagulating power o...

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  12. Why does bleeding stop by rubbing moist alum?

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

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

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  15. What happens when dialysis is prolonged?

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  16. Why does the white precipitate of silver halide become coloured in the...

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  17. What is the role of activated charcoal in gas mask used in coal mines?

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  18. How does a delta form at the meeting place of sea and river water?

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  19. Given an example where physisorption changes to chemisorption with ris...

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  20. Why is desorption important for a substance to act as good catalyst?

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