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Give reason for the following. Brownia...

Give reason for the following.
Brownian movement of colloidal particles.

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Colloidal particles are positively charged.
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SUBHASH PUBLICATION-SURFACE CHEMISTRY-Questions
  1. Name the phenomenon/effect for the following. When electric potentia...

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

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

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

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

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

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  7. State hardy - Schulze rule.

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  8. What is tyndall effect?

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

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

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

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

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  13. What are emulsions? Give an example of oil dispersed in water (o/w) ty...

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  14. Give four applications of colloids.

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  15. How is smoke precipitated using cottrel precipitator.

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  16. Give an example of an oil dispersed in water emulsion.

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

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  18. Give reason '' Potash alum is used in the clarification of water

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  19. Give reason : A solid catalyst is very efficient in the finely dvide...

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  20. Give reason : Lyophillic sols are more stable than lyophobic sols.

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