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Differentiate between lyophilic and lyop...

Differentiate between lyophilic and lyophobic colloids.

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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) ( SHORT ANSWER QUESTIONS)
  1. What are micelles ? Give an example of a micellers system.

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  2. What is meant by critical micelle concentration and Kraft temperature ...

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  3. Differentiate between lyophilic and lyophobic colloids.

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  4. Differentiate between sol and emulsion.

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  5. Milk is an emulsion. Identify the dispersed phase and emulsifier in mi...

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  6. Distinguish between the meaning of the terms adsorption and absorption...

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  7. What are lyophilic and lyophobic colloids ? Give four differences betw...

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  8. Why potash alum is added to purify water?

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  9. The adsorption of solutes from solution by solid adsorbents can be exp...

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  10. Give one difference between gel and sol.

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  11. What are macromolecular and multimolecular colloids? Give one example ...

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  12. What is common in aquasols and solid aerosols ? Also find the point of...

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  13. Does colloidal state represent a different class of substance? Comment...

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  14. Write short notes on Hardy-Schulze's rule

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  15. Write short notes on Peptization

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  16. What is Hardy Schulze's rule ? Justify the use of gelatin as a protect...

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  17. Explain the terms emulsions and micelles. Action of soap is due to emu...

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

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  19. Explain the terms associated colloids and peptization.

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  20. Explain the phenomenon which takes place when ferric hydroxide solutio...

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