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The protecting power of lyophilic colloi...

The protecting power of lyophilic colloidal sol is expressed in terms of

A

coagulation value

B

gold number

C

critical miscelle concentration

D

oxidation number

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the protective power of the lyophilic colloids is expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0.025 g of starch the coagultion is just prevented . the gold number of starch is : 0.025, 0.25, 2.5, 25.

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. which of the following statement (S) is / are correct? higher the gold number, more protective power of colloid, Lower the gold number, more protective power, Higher the coagulation value, more the coagulation power, lower the coagulation value, higher the coagulation power.

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of mili - gram of the protective colloid which prevent the coagulation of 10 mL of red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. gold number given an indication of : protective nature of colloids, purity of gold in suspension, the charge on a colloidal solution of gold, gram of gold per litre of solution.

What are lyophilic colloids?

Among the following , select the properties of lyophilic coloidal sols :

The protective power of colloids is measured in the unit ................. .

surface tension of lyophilic sols is

Which of the following is a lyophillic colloid ?

The efficiency of a protective colloid is described in terms of

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
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  2. If x is amount of adsorbate and m is amount of adsorbent, which of the...

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  3. The protecting power of lyophilic colloidal sol is expressed in terms ...

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  4. In Freundlich adsorption isotherm, the value of 1/n is

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  5. Which one of the following statements is incorrect about enzyme cataly...

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  6. Which of the following statement is correct for the spontaneous adsorp...

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  7. Which property of colloids is independent of the charge on colloidal p...

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  8. Fog is a colloidal Solution of

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  9. The coagulation values in millimoles per litre of the electrolytes use...

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  10. In an electrical field, the Particles a colloidal system move towards ...

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  11. Adsorption is accompanied by

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  12. The formation of micelles takes place only above

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  13. Colloidion is a 4% solution of which one of the following in alcohol-e...

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  14. Choose the incorrect statement in respect of physisorption ?

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  15. In the adsorption of a gas on solid, Freundlich isotherm is obeyed. Th...

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  16. Which one of the following is not explained by adsorption?

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  17. The correct ascending order of adsorption of the following Gases on th...

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  18. Which of the following Statements is incorrect about physisorption?

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  19. Volume of a colloidal particle, Vc as compared to the volume of a solu...

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  20. Which of the following electrolyte will have maximum flocculation valu...

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