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Gold numbers of protective colloids A, B...

Gold numbers of protective colloids A, B, C and D are `0.50, 0.01, 0.10` and `0.005` respectively. The correct order of their protective powers is

A

C lt B lt D lt A

B

A lt C lt B lt D

C

B lt D lt A lt C

D

D lt A lt C lt B

Text Solution

Verified by Experts

The correct Answer is:
B
`"Gold number" prop (1)/("protective power")`
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ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. Sedimentation potential is reverse of :

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  2. When a freshly precipitated substance is converted into a colloidal so...

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  3. Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10...

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  4. Purification of colloids is done by the process of

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

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

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  7. Gold number is maximum for the lyophilic sol is

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  8. Method by which lyophobic sol can be protected.

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  9. Gold number is

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

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  11. Gold number is associated with

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

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

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  14. Lyophilic sols are more stable than lyophobic sols because

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

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

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

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

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  19. Gold number is a measure of the :

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  20. Select wrong statement

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