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The protcting power of lyophilic colloid...

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

A

Critical number

B

Oxidation number

C

Coagulation value

D

Gold number

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The correct Answer is:
D
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The protecting power of lyophilic colloidal sol 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

ALLEN-SURFACE CHEMISTRY -EXERCISE -2
  1. which of the following forms cationic micelles above certain concentra...

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  2. Which of the following statements about the zeolites is false?

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  3. Which one of the following forms micelles in aqueous solution above ce...

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  4. The Langmuir adsorption isotherm is deduced using the assumption.

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  5. Which of the following molecules is most suitable to disperse benzen i...

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  6. Colloidal solution show in H(2)O :-

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  7. On adding excess electrolyte what happens to the collides :-

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  8. Butter is an example of :-

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  9. If x is the amount of adsorbate and m is the amount of adsorbent, whic...

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  10. Which of the following is incorrect for physio-sorption

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  11. Fog is a colloidal system of :-

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  12. In frenudlich adsorption isotherm, the value of 1//n is

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

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  14. The protcting power of lyophilic colloidal solution is expressed in te...

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  15. The ease of adsorption of the hydrated alkali metal ions on ion-exchan...

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  16. A colliodal solution is kept in dark and is illuminated by a beam of l...

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  17. According to Freundlich adsorption isotherm, which of the following is...

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  18. Hair cream is :-

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

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  20. The coagulating power of electrolytes having ions Na^(+),Al^(3+) and B...

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