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Gold number is maximum for the lyophilic...

Gold number is maximum for the lyophilic sol is

A

Gelatin

B

Haemoglobin

C

Sodium oleate

D

Potato starch

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Verified by Experts

The correct Answer is:
D
Gold number shows the protective power of a lyophilic solution. Lesser the gold number, greater will be the protecting power of that colloid. Gelatin is one of the best protective colloid. Among the given colloids, potato starch has maximum gold number
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Gold number of a lyphilic sol is such property that:

surface tension of lyophilic sols is

ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. The concentration of electrolyte required to coagulate a given amount ...

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  2. Which of the following can protect a gold sol from coagulation by NaCl...

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  3. Gold number is maximum for the lyophilic sol is

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  4. Method by which lyophobic sol can be protected.

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  5. Gold number is

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  6. On addition of one mL solution of 10% NaCl to 10 mL gold sol in the pr...

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  7. Gold number is associated with

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  8. A negatively charged suspension of clay in water will need for precipi...

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  9. Gelatian is mostly used in making ice cream in order to

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  10. Lyophilic sols are more stable than lyophobic sols because

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  11. The number of moles of lead nitrate needed to coagulate 2 mole of coll...

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  12. Which of the following pairs of ions would be expected to form precipi...

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  13. Statement : to stop bleeding from an injury ferric chloride can be app...

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  14. For coagulating As(2)S(3) colloidal sol, which of the following will h...

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  15. Gold number is a measure of the :

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  16. Select wrong statement

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  17. The coagulation of 200 mL of a positive sol took place when 0.73 g HCl...

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  18. Which of the following makes the hydrophilic sol unstable?

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  19. Which has least gold number

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  20. Cloud bursts due to :

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