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AL(OH)(3),Fe(OH)(3), As(2)S(3),Cu,Ag,Au,...

`AL(OH)_(3)`,`Fe(OH)_(3)`, `As_(2)S_(3)`,`Cu`,`Ag`,`Au`, are which type of colloids ?

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HYydrophobic colloids
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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Give an example of sol.

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  2. Gum,starch,gelatin are which type of colloids ?

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  3. AL(OH)(3),Fe(OH)(3), As(2)S(3),Cu,Ag,Au, are which type of colloids ?

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  4. Give an example of multimolecular colloids.

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  5. What is especially observed when a beam of light is passed through a c...

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  6. What are micelles? Give an example of a micelle system.

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  7. physisorption and chemisorption, which type of adsorption has higher ...

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  8. Which type of adsorption is highly specific and irreversible ?

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  9. Name any two/four applications of adsorption (four).

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  10. Does the adsorption of a gas on the surface of a solid increase or dec...

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  11. What is the role of desorption in the process of catalysis?

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  12. What are the characteristics of Lyophobic sols.

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  13. Define peptisation.

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  14. What happens when an electrolyte is added to ferric hydroxide sol?

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  15. Write the dispersed phase and dispersion medium of the following coll...

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  16. What are lyophilic and lyophobic colloids ? Which of these sols can be...

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  17. Define adsorption with example.

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  18. What are oil in water and water in oil type of emulsions ? Give one ex...

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  19. What is the effect of rise in the temperature on the adsorption of a ...

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  20. What phenomena will occur, when sillica gel and anhydrous calcium chlo...

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