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The ability of the protective colloid is...

The ability of the protective colloid is measured in terms of……………….

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The correct Answer is:
Gold number
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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

CENGAGE CHEMISTRY-SURFACE CHEMISTRY-Exercises Fill In The Blanks
  1. Colloids represent a state of ……………..and not a class od substances.

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  2. Colloids consist of……….phase, viz, ………….and …………………. .

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  3. Smoke is a colloidal system of dispersed in …………. . This system is tem...

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  4. Blood is a ………… charged sol.

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  5. The sky looks blue due to ………… effect.

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  6. Migration of colloidal particles under the influence of electrie field...

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  7. According to Hardy Schulze rule, the power of coagulation of an ion de...

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  8. The emulsoid which is added to suspensoid to prevent flocculation is c...

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  9. The ability of the protective colloid is measured in terms of……………….

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  10. The process of removing dissolved substance from a colloidal solution ...

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  11. The dispersion medium in aerosol is…………….

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  12. The phenomenon of scattering of light by colloidal particle is celled…...

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  13. Bleeding is stopped by the application of ferric chloride. This is due...

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  14. Gold number is minimum in case of……………

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  15. The phenomenon of converting colloidal solution into suspension is kno...

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  16. Colloidal system shows extensive adsorption due to large …………….

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  17. A metal is in the form of dispersed phase and water is the dispersion ...

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  18. The zing-zagmotion of colloidal particle is called……………..

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  19. The liquid-liquid colloidal dispersions are called……………..

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  20. The enthalpy of chemisorption is ……………….. Than the enthalpy of physiso...

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