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Gelatin has the minimum protective power...

Gelatin has the minimum protective powers.

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Which of the following has minimum protecting power ?

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Gold number of some lyophilic sols are : Which has maximum protective power :

Assertion: Gold number is the measure of protective powers of differents colloids. Reason: The smaller the gold number of lyophilic colloid, the smaller is its protective power.

Statement-1:Gold number is the measure of protective powers of different colloids. Statement-2: The smaller the gold number of lyophilic colloid, the smaller is its protective power.

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CENGAGE CHEMISTRY-SURFACE CHEMISTRY-Exercises True /False
  1. Peptization is reverse of coagulation.

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  2. Milk is an emulsion of W//O type.

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  3. Gold sol is prepared by Breding's arc method.

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  4. Viscosity of lyohilic colloidal solution is same as that of dispersion...

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  5. Collidal solution is a heterogeneous solution which contains particle ...

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  6. Colloidal solution of a liquid dispersed in solid is called gel.

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  7. Gelatin has the minimum protective powers.

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  8. The charge on the colloidal particle is due to preferential adsorption...

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  9. The charge on the colloidal particles does not account for the stabili...

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  10. Metal sol is negatively charged.

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  11. Adsorption is aways exothermic.

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  12. Assertion(A): All enzymes are proteins, but all proteins are not enzym...

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  13. Promoters are substances which increases the efficiency of catalyst.

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  14. Actication energy is always lowered by positive catalyst.

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  15. In physical adsorption, the molecules of adsorbate are held by chemica...

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  16. In physical adsorption, the molecules of adsorbate are held by chemica...

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  17. Combination of N(2) and H(2) in the presence of Fe as a catalyst is an...

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  18. Acetic acid formed during hydrolysis of ester acts as an induced catal...

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  19. The activity of enzyme is increased in the presence of certain substan...

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  20. A caatalyst remains unchanged chemically and physically at the end of ...

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