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Explain what is observed when electric c...

Explain what is observed when electric current is passed through a colloidal sol ?

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On passing electric current, the colloidal particles move towards oppositively charged electrodes, where they tose their charges and get coagulated.
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CHHAYA PUBLICATION-SURFACE CHEMISTRY-Solved NECRT TEXTBOOK PROBLEMS
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  2. How are colloids classffied on the basis of nature of dispersion mediu...

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  3. How are colloids classffied on the basis of interaction between disper...

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  4. Explain what is observed when a beam of light is passed through a coll...

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  5. Explain what is observed when an electrolyte NaCl is added to hydrated...

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  6. Explain what is observed when electric current is passed through a col...

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  7. What is de-emulsification? Name two de-emulsifiers.

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  8. Action of soap is due to emulsification and micelle formation. Comment

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  9. Give four examples of heterogeneous catalysis.

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  10. What do you mean by activity & selectivity of catalysts?

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  11. Describe some features of catalysis by zeolites.

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  12. What is shape selective catalysis?

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  13. Explain the Electrophoresis term.

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  14. Explain the Coagulation

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  15. Explain the Dialysis term

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  16. Give four uses of emulsions

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  17. Explain the Alcosol terms with suitable examples.

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  18. Explain the Aerosol terms with suitable examples.

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  19. Explain the Hydrosol terms with suitable examples.

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  20. Comment on the statement that "colloid is not a substance but a state ...

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