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What is Brownian movement ? What is the ...

What is Brownian movement ? What is the cause for it ?

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In dispersion medium, colloidal particles are in continuous zig zig random motion in all directions. This type of kinetic motion of the colloidal particles is called Brownain movement.
Brownian movement is due to the bombarment between the colloidal particles and the particles of disperion medium.
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SUBHASH PUBLICATION-SURFACE CHEMISTRY-Questions
  1. What is dialysis ? Explain ?

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  2. What is tyndall effect ? Explain.

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  3. What is Brownian movement ? What is the cause for it ?

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  4. What is zeta potential ?

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  5. What is an electrophoresis ? Explain.

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  6. What is coagulation or precipitation of colloids?

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  7. Mention the role of alum in the purification of drinking water ?

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  8. Name two methods by which a lyophillic sol can be coagulated.

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  9. Name the phenomenon/effect for the following. Colloidal particles ar...

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  10. Name the phenomenon/effect for the following. When electric potentia...

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  11. Name the phenomenon/effect for the following. Scattering of light b...

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  12. Give reason for the following. Brownian movement of colloidal partic...

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  13. Give reason for the following. Stability of colloids.

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  14. Give reason for the following. Brownian movement of colloidal partic...

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  15. As2S3 sol is negatively charged. Between sodium nitrate and aluminium ...

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  16. State hardy - Schulze rule.

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  17. What is tyndall effect?

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  18. In the coagulation of negative sol, arrange the following ions in the ...

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  19. For positive sol arrange the coagulation power of the following active...

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  20. What is oil dispersed in water (o/w) type emulsion ? Give example.

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