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Which of the following is the best prote...

Which of the following is the best protective colloid?

A

Potato starch

B

Gurn arabic

C

Egg albumen

D

Gelatine

Text Solution

Verified by Experts

The correct Answer is:
D
Protective power of of lyophilic colloid `prop(1)/("Gold number of lyophilic colloid")`
Thus smaller the gold number of a colloid, larger will be its protective power, Gelatine having the minimum gold number is the best protective colloid.
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R SHARMA-SURFACE CHEMISTRY-Follow-up Test 10
  1. Which of the following colligative properties of colloidal solutions i...

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  2. If a strong beam of light is passed through a colloidal sol place in a...

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  3. The Tyndall effect is due to the fact that colloidal particles light i...

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  4. Storng Tyndall effect is observed only when (i) the refractive indic...

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  5. Typdall effect is used to distinguish between a colloidal solution and...

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  6. Three beams of white light passing through a colloid of sulphur partic...

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  7. The cause of Brownian-movement is

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  8. The most important property of lyophobic colloidal dispersion is that ...

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  9. The charge on the lyophobic sol particles is due to

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  10. Which of the following statements is correct?

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  11. Electrokinetic potential (or zeta potential) is the

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  12. Movement of colloidal particles under the influence of electrostatic f...

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  13. Process of aggregation of colloidal particles into an insoluble precip...

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  14. The coagulation of the lyophobic sols can be carried out by

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  15. The minimum amount of an electrolyte in that must be added to one litr...

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  16. The capacity of an ion to coagulate a colloidal solution depends on

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  17. Which of the following sols are relativity difficult to coagulate?

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  18. Which of the following is a protective colloid?

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  19. To measure the protective action of action of different lyophilic sols...

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  20. Which of the following is the best protective colloid?

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