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Explain what is observed when ltbr. a. A...

Explain what is observed when ltbr. `a.` An electrolyte `NaCl` is added to hydrated ferric oxide sol.
`b.` Electric current is passed through a colloidal sol.
`c.` When a beam of light is passed through a collidal solution.

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The positively charged colloidal particles of Fe(OH), get coagulated by the oppositely charged `Cl^(-)` ions provided by NaCl.
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MODERN PUBLICATION-SURFACE CHEMISTRY-NCERT FILE (SOLVED) (NCERT TEXTBOOK EXERCISES )
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  2. When a beam to light is passed through colloidal solution.

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  3. Explain what is observed when ltbr. a. An electrolyte NaCl is added to...

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  4. Explain what is observed when ltbr. a. An electrolyte NaCl is added to...

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  5. What are emulsions ? What are their different types ? Give an example ...

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  6. What is demulsification ? Name two demulsifiers.

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

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  8. Give four examples of heterogeneous catalytic reactions.

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  9. What do you mean by activity and selectivity of catalysts ?

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  10. Descirbe some features of catalysis by zeolites.

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  11. What is shape - selective catalysis ?

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  12. Explain the following tem : Electrophoresis.

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  13. Explain the following terms : {:(a. El etropho resis , b. Coagulati...

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  14. Explain the following terms : {:(a. El etropho resis , b. Coagulati...

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  15. TYNDALL EFFECT

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  16. Give four uses of emulsion.

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  17. What are micelles ? Give an example of a micelle system.

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  18. Explain the terms with suitable examples: Alcosol

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  19. Explain the following terms with suitable examples. (a) Gel (b) Liq...

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  20. Explain the following terms with suitable examples : a. alc osol,b....

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