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The protecting power of lyophilic colloi...

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

A

Gold number

B

Critical miscelle concentration

C

Oxidation number

D

Coagulation value

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A
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The protcting power of lyophilic colloidal solution is expressed in terms of

The protective power of lyophilic sol is

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?

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. gold number given an indication of

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. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0l.025 g of starch the coagultion is just prevented . the gold number of starch is

Assertion : Lyophilic colloids such as starch, gelatin etc, act as protective colloids. Reason : Protective power of lyophilic coloids is expressed in terms of gold number.

NARAYNA-SURFACE CHEMISTRY -EXERCISE - 3
  1. The homogenous catalysis is shown by

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  2. Which of the following statements are true for hydrophilic solution ?

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  3. Which of the following properties are related to physical adsorption ?

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  4. The best condition for hetergeneous catalysis is

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  5. Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10...

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  6. Which of the following statements is incorrect regarding physissorptio...

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  7. Select the incorrect statement

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  8. Four different colloids have the following gold number, which one has ...

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  9. Adsorption is an exothermic process. The amount of substance adsorbed ...

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  10. Fog is a colloidal solution of

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  11. Which characteristic is not associated with chemical adsorption?

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  12. Positve Catalyst

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

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  14. In freundlich adsorption isotherm, the value of 1/n is :

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

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  16. According to Hardy schultz law, the floculating power of an ion increa...

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  17. Which property of colloids is not dependent on the change on colloidal...

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

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  19. Fog is a colloidal solution of

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  20. The coagulation value in millimoles per litre of the electrolyes used ...

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