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What are micelles ? Give an example of a...

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

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Micelles are substances that behave as normal strong electrolytes at low concentration but at high concentrations behave as colloids due to formation of aggregates. They are also called associated colloids, e.g., soaps and detergents. They can form iosn and may contain 100 or more molecules to form a micellel.
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NCERT-SURFACE CHEMISTRY-Exercise
  1. Why is adsorption always exothermic ?

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  2. How are the colloidal solutions classified on the the basis of physica...

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  3. Discuss the effect of pressure and temperature on the adsorption of ga...

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  4. What are lyophilic and lyophobic sols?Give one example of each type ? ...

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  5. What is the difference between multimolecular and macromolecular colli...

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  6. What are enzymes ? Write in brief the mechanism of enzyme catalysis ?

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  7. How are colloids classified on the basis of (i) physical states of c...

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  8. Explain what is observed (i) when a beam of light is passed through ...

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

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

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

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  12. Give four examples of heterogeneous catalytic reactions.

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

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  14. Descirbe some features of catalysis by zeolites.

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  15. What is shape selective catalysis ?

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  16. Explain the following terms : (a.) Electrophoresis (b.) Coagulatio...

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  17. Give four uses of emulsion.

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

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  19. Explain the following terms with suitable examples : (a.) alcosol, ...

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

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