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Fill in the blanks : The minimum milligr...

Fill in the blanks : The minimum milligrams of a protective colloid to be added to 10 ml of standard red gold sol, so that no coagulation takes place when 1 ml of 10% `NaCl` solution is added is called ………….

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SHARAM PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Fill in the blanks : The technique of separation of components of a mi...

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

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

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

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

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

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  7. Write three differences between physical and chemical adsorption.

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

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

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

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

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  12. What do you mean by hydrosol and alcosol ?

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  13. Why is a colloidal sol stable?

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

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  15. Why is gelatine added to ice cream ?

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

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

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  18. How do the aquasols and solid aerosols differ ?

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  19. The adsorption of a gas on the surface of the solid is generally accom...

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  20. What causes Brownian movement in colloidal solution ?

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