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What is the difference between a sol and...

What is the difference between a sol and a gel?

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SURA PUBLICATION-SURFACE CHEMISTRY -SHORT ANSWER QUESTIONS
  1. In a coagulation experiment, 10 mL of a colloid (X) is mixed with dist...

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  2. Peptising agent is added to convert precipitate into colloidal solutio...

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  3. What happens when a colloidal sol of Fe(OH)3 and AS2O3 are mixed?

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  4. What is the difference between a sol and a gel?

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  5. Why are lyophillic colloidal sols are more stable than lyophobic collo...

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  6. Addition of Alum purifies water. Why?

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  7. What are the factors which influence the adsorption of a gas on a soli...

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  8. What are enzymes? Write a brief note on the mechanism of enzyme cataly...

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

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  10. Describe some feature of catalysis by Zeolites .

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  11. Give three uses of emulsions.

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  12. Why are solids rigid ?

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  13. Why is desorption important for a substance to act as good catalyst?

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  14. Comment on the statement : Colloid is not a substance but it is a stat...

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  15. Explain any one method for coagulation

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  16. Write a note on electro-osmosis

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  17. Write a note on catalytic poison.

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  18. Explain intermediate compound formation theory of catalysis with an ex...

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  19. What is the difference between homogenous and hetrogeneous catalysis ?

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  20. Describe adsorption theory of catalysis.

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