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Which of the following can protect a gol...

Which of the following can protect a gold sol from coagulation by NaCl solution?

A

`Fe(OH)_(3)`

B

Gelatin

C

`As_(2)S_(3)`

D

None of these

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Verified by Experts

The correct Answer is:
B
Gelatin is a best stabilizing agent.
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ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. Purification of colloids is done by the process of

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  2. The concentration of electrolyte required to coagulate a given amount ...

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

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  4. Gold number is maximum for the lyophilic sol is

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  5. Method by which lyophobic sol can be protected.

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  6. Gold number is

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

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  8. Gold number is associated with

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

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

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  11. Lyophilic sols are more stable than lyophobic sols because

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

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

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

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

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  16. Gold number is a measure of the :

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  17. Select wrong statement

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

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

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  20. Which has least gold number

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