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Why are substances like platinum and pal...

Why are substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions?

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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. What is the role of desorption in the process of catalysis?

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  2. Why does physisorption decrease with increase of temperature ?

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  3. Why are substances like platinum and palladium often used for carrying...

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

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  5. define shape selective catalysis with one example.

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  6. How does chemical adsorption of a gas on a solid vary with temperature...

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  7. What happens when gum arabic is mixed with gold sol?

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  8. Why is chemisorption referred to as activated adsorption?

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  9. Why are some medicines more effective in the colloidal form?

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  10. Gelatin which is a peptide, is added in ice-creams. What can be its ro...

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  11. On passing H(2)S through an aqueous solution of SO(2) a yellow turbidi...

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  12. Why activated charcoal is a better absorbent than ordinary charcoal ?

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  13. When rivers meet the ocean, they generally form delta, give resasons.

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  14. Why coloid cannot be filtered by ordinary filter paper ?

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  15. Name any two applications of adsorption.

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  16. Give the dispersion medium and dispersed phase of the following (i)sm...

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  17. Explain why colloidal solution is not precipitated in the presence of ...

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  18. Explain what happens when a colloidal solution of gold is brought unde...

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  19. Define lyophilic sol with one example .

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  20. What are characteristics of Emulsions.

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