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Which of the following statements regard...

Which of the following statements regarding sols is not correct?

A

Brownian movement stablises sols.

B

In a reaction, catalyst may change qualitatively as well as physically.

C

An emulsion can be broken both by heating as well as freezing.

D

On prolonged dialysis, colloids become stable.

Text Solution

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The correct Answer is:
D
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GRB PUBLICATION-SURFACE CHEMISTRY-E. Coagulation, Protection and Application of Colloids
  1. Gold numbers of protective colloids A,B,C and D are 0.5,0.01,0.10 and ...

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  2. On passing light from colloidal solution, the effect due to scattering...

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  3. The solution in which the light is scattered by the particles is :

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  4. The charge on As(2)S(3) sol is due to the adsorbed :

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  5. Sky looks blue due to

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  6. Gold number is minimum in case of……………

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  7. Tyndall effect will be observed in :

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  8. The Brownian motion is due to :

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  9. What happens when lyophilic sol is added to a lyophobic sol?

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  10. Identify the statement which is incorrect w.r.t. surface phenomenon.

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  11. If Fe(OH)(3) sol is subjected to electrophoresis then which of the fol...

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  12. on addition of 1 ml solution of 10% NaCl to 10 ml gold sol in the pres...

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  13. which of the following will have the highest coagulating power for As(...

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  14. According to the Tyndall effect, a beam of light becomes visible when ...

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  15. Which of the following ions has maximum flocculation value?

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  16. Which of the following is a mismatch?

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  17. Which of the following ions will be most effective in coagulating the ...

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  18. (i) At 298 K the volume of NH(3) adsorbed by 1 g of charcoal is higher...

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  19. Which of the following will show Tyndall effect?

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  20. Which of the following statements regarding sols is not correct?

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