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When negatively charged colloids like As...

When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts

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Identify the positively charged sol

The charge on As_(2)S_(3) sol is due to:

The charge on As_(2)S_(3) sol is due to the adsorbed :

The negative charge on As_2S_3 sol is due to adsorption of :

Metal sol is negatively charged.

The colloidal sol of As_(2)S_(3) prefers to adsorb

The best electrolyte for coagulating As_(2)S_(3) sol is

MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
  1. Define the following terms : (i) Kraft temperature (ii) Peptizati...

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  2. CMC (Critical Micelle Concentration) is

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  3. When negatively charged colloids like As(2)S(3) sol is added to positi...

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  4. (a) In reference to Freundlich adorption isotherm write the expression...

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  5. Lyophilic sols are

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  6. (a) In reference to Freundlich adorption isotherm write the expression...

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  7. Why dows physisoption decrease with increase of temperature ?

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  8. Why are powdered substances more effective adsorbent than their crysta...

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  9. Give the decreasing order of flocculating power of the following ions ...

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  10. Explain the cleansing action of soaps.

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  11. Classify the type of colloidal sol in the following based on the basis...

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  12. What is Hardy- Schulze law?

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  13. Write differences between physisorption and chemisorption.

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  14. Why does bleeding stop by rubbing moist alum?

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  15. Distinguish between the meaning of the terms adsorption and absorption...

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  16. Write on difference in each of the following: (a) Multimolecular col...

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  17. Why does leather get hardened after tanning?

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  18. Lyophilic sols are more stable than lyophobic sols because

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  19. Why is it necessary to remove CO when ammonia is obtained by Haber's p...

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  20. Define adsorption. Write any two features which distinguish physisorpt...

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