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Fill in the blanks : The adsorption of N...

Fill in the blanks : The adsorption of `N_2` gas on iron at 83K is ……….. Where as at 773k is …………

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SHARAM PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Fill in the blanks : Cold cream is an example of ……….. In ……….. Type e...

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  2. Fill in the blanks : The heat of adsorption in physisorption lies in ...

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  3. Fill in the blanks : The adsorption of N2 gas on iron at 83K is ……….. ...

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  4. Fill in the blanks : The technique of separation of components of a mi...

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  5. Fill in the blanks : The type of colloidal dispersion obtained when eg...

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  6. Fill in the blanks : The minimum milligrams of a protective colloid to...

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  7. Fill in the blanks : The swelling of gel in water is called …………..

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  8. Fill in the blanks : The formation of micelles take place above a part...

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  9. Fill in the blanks : Increasing the adsorbing power of an adsorbent by...

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  10. Write three differences between physical and chemical adsorption.

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  11. What are colloids ? How do they differ from crystalloids ?

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  12. What are lyophilic and lyophobic colloids ? Give one example of each.

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  13. What is the difference between colloidal solution, gel and emulsion ?

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  14. What happens when colloidal solution of Fe (OH)3 is mixed with that of...

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  15. What do you mean by hydrosol and alcosol ?

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  16. Why is a colloidal sol stable?

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  17. What happens to gold sol if gelatine is added to it ?

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  18. Why is gelatine added to ice cream ?

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  19. Why is a peptizing agent added to convert a precipitate into colloidal...

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  20. Why Cottrell's smoke precipitator is fitted at the mouth of chimney us...

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