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The ability of ion to bring about coagul...

The ability of ion to bring about coagulation of a given collidal solution depends upon

A

Its size of ion

B

The magnitude of charge

C

The sign of charge

D

Both magnitude and sign of charge

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The correct Answer is:
D
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coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. the ability of an ion to bring about coagulation of a given colloid depends upon :

MOTION-SURFACE CHEMISTRY-Exercise - 1
  1. A metal sulphide sol. can be flucculated by which one of the following...

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  2. Ferric chloride is applied to stop bleeding cut because

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

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

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

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  6. Flocculation value is expressed in terms of -

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  7. Which of the following has largest protecting power -

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

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  9. Gelatin protects

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

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

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

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

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  14. Adsorption is accompanied by

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  15. which gas will be adsorbed on a solid to greater extent ?

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  16. Which of the following factors affects the adsorption of a gas on soli...

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  17. The volume of gases NH(3), CO(2) and CH(4) adsorbed by one gram of cha...

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  18. The heat of physisorption lie in the range of

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  19. which of the following is used to adsorb water ?

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  20. which one of the following is not applicable to chemisorption ?

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