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Chemisorption always form unimolecular/m...

Chemisorption always form unimolecular/multimolecular layer.

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What are Multimolecular colloids?

Colloidal sol of sulphur is an example of multimolecular colloid while colloidal sol of starch represents macromolecular colloid. Difference between associated colloids, multimolecular and macromolecular colloids. Multimolecular colloids are formed by the aggregation of a large number of simple molecules, macromolecular colloids consists of macromolecules having size in the colloidal range. On the other hand, associated colloids also called micelles, are generally electrolytes. They exist as ions at low concentration. However, above a particular concentration called critical micelle concentration (CMC) and above a particular temperature called Kraft temperature, these get associated and exhibit colloidal behaviour. Soap is a common example of associated colloids. Define multimolecular colloid?

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. The formation of micelles takes place above a particular concentration...

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  2. Choose the correct alternative : Adsorption is exothermic/endothermic ...

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  3. Chemisorption always form unimolecular/multimolecular layer.

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  4. According to Freundlich adsorption isotherm, x/m becomes independent o...

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  5. The size of colloidal particles is less/more than that of true solutio...

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  6. Substances like gum, starch form lyophilic/lyophobic sols.

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  7. The formation of micelles takes place above a particular temperature c...

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  8. What are Multimolecular colloids?

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  9. True or False : Colloidal sols are always heterogeneous.

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  10. What happens when ferric chloride is added to sodium hydroxide solutio...

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  11. Gelatin (gold number 0.005-0.01) has more/less protecting power than a...

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  12. The electronic configuration of an element Z is 2, 8, 8. (f) Name the...

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  13. Name the dispersed phase and dispersion mediumin fog.

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  14. The particles of colloidal solution possess electrical charge which is...

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  15. What is Tyndall effect ? What is the cause of it ?

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  16. Does the adsorption of a gas on the surface of solid increases or decr...

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  17. The cause of Brownian movement is

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  18. Name the enzyme which converts starch into maltose.

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  19. Which has a higher enthalpy of adsorption, physisorption or chemisorpt...

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  20. What is adsorption isobar?

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