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What are lyophilic and lyophobic sols ? ...

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

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NCERT TELUGU-SURFACE CHEMISTRY-Exercise
  1. Why is adsorption always exothermic?

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  2. How are colloids classified on the basis of interaction between dispe...

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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 for each type...

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  5. What is the dlfferenee between multmolecular and macromolecular colloi...

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  6. What are enzymes ? Give examples ?

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

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

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  9. What are emulsions? What are their different types? Give example of ea...

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  10. What is demulsification ? Name two demulsifiers.

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

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  12. Give two examples for heterogeneous catalysis.

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

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  14. Discuss 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: (i) Electrophoresis (ii) Tyndall ef...

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  17. Give four uses of emulsions.

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  18. What are micelles ? Give one example.

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  19. Explain the terms with suitable examples: (i) Aerosol (ii) Hydros...

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  20. What is a colloid?

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