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the colloidal sols are purified by...

the colloidal sols are purified by

A

Peptisation

B

Co-agulation

C

Dialysis

D

None of these

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The correct Answer is:
C
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Collioidal sols can be purified by

Colloidal solutions are purified by dialysis. (r) In the process of dialysis, colloidal particles pass through parchment paper.

In a colloidal state, the particle size of he dispersed phase ranges between 10^(3) to 10^(6) pm and the colloidal sol is of heterogeneous nature. Depending upon the ease with which these sols are formed, the colloidal sols are cassified as lyophilic and lyophobic. THe stability of a colloidal sol is due to the presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. The coagulationg power of the active ions of he electrolytes can be compared with the help of Hardy-Schulze Law. The protecting power of the lyophilic sols can be compared with the help of gold number. Lesser the value of gold number, more will be the protecting power of the lyophilic sol. Lyophilic sols are more stable than lyophobic sols because

In a colloidal state, the particle size of he dispersed phase ranges between 10^(3) to 10^(6) pm and the colloidal sol is of heterogeneous nature. Depending upon the ease with which these sols are formed, the colloidal sols are cassified as lyophilic and lyophobic. THe stability of a colloidal sol is due to the presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. The coagulationg power of the active ions of he electrolytes can be compared with the help of Hardy-Schulze Law. The protecting power of the lyophilic sols can be compared with the help of gold number. Lesser the value of gold number, more will be the protecting power of the lyophilic sol. The areseneous sulphide sol has negative (-) charge. The maximum power to precipitate it is of :

Colloidal can be purified by

Colloids can be purified by :

Colloidal solution can be purified by :

MOTION-SURFACE CHEMISTRY-Exercise - 1
  1. Point out the false statement -

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  2. A liquid is found to scatter a beam of light but leaves no residue whe...

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  3. the colloidal sols are purified by

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  4. The separation of colloidal particles from those of molecular dimensio...

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  5. The impurities present in rain water possess ……..charge.

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  6. Which one of the following substance gives a positively charged sol?

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  7. Which one of the following will have the highest coagulating power for...

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  8. A metal sulphide sol. can be flucculated by which one of the following...

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  9. Ferric chloride is applied to stop bleeding cut because

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  10. A colloidal solution is subjected to an electrical field. The particle...

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  11. Which of the following methods is used for sol destruction?

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  12. The ability of ion to bring about coagulation of a given collidal solu...

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  13. Flocculation value is expressed in terms of -

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  14. Which of the following has largest protecting power -

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  15. The coagulation of 10cm^(3) of gold sol by 1 ml 10% NaCl solution is c...

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  16. Gelatin protects

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

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  18. The gold numbers of four protective colloids O,P,Q and R are 0.005, 0....

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  19. Which plot is the adsorption isobar for chemisorption where x is the a...

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  20. For adsorption of gas on solid suface. The plots of logx//m versus log...

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