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Greater the valency, the higher is the c...

Greater the valency, the higher is the coagulating power of ion.'This rule was inroduced by

A

hardy-schulze

B

graham

C

kossel and lewis

D

faraday

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A
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Assertion: For arsenic sulphide sol, BaCl_(2) has higher coagulation value than NaCl Reason : Higher the valency of the oppoistively charged ion of the electrolyte added, higher is the coagulating power of the electrolyte.

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. coagultion value propto = 1/("coagulating power") the coagulation values of differnt electrolytes are different . this behavious can be easily uderstood by Harby - schulze rule which states. the greater is the valency of the effective ion grreater is its coagulating power," which one had the highest coagulating powe?

The coagulating power of ions, for a negative sol changes in the order

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 :

"The grater the charge on an ion, the grater its coagulating power" is a statement of

Greater the flocculation value of an electrolyte, greater is its coagulating power.

Which of the following ion has the highest coagulation power for the sol. Which is obtained by the following reaction? FeCl_(3)("excess")+NaOHtoSol

OP TANDON-THE COLLOIDAL STATE-Objective Questions
  1. Migration of colloidal particles under the influence of electrie field...

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  2. the stability of lyophilic colloids is due to

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  3. Greater the valency, the higher is the coagulating power of ion.'This ...

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  4. Bleeding is stopped by the application of ferric-chloride this is beca...

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  5. The property of colloidal suspension used to determine the nature of c...

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  6. When excess of electrolyte is added to a colloid it :

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  7. The colloidal solutions of gold prepared by different methods have dif...

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  8. The capacity of an ion to coagulate a colloidal solution depends on

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  9. Lyophilic sols are more stable than lyophobic sols because

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

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

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  12. Which of the following ielectrolytes is least effective in causing flo...

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  13. Fe^(3+) ions coagulate blood. This show should blood contains colloida...

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  14. Gold number is a measure of

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  15. Gold number is a measure of

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  16. Surface of lyophilic sols is

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  17. Gelatin is generally added to ice creams. Why?

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  18. Which of the following is the best protective colloid?

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  19. Gold number is a measure of the :

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  20. On addition of 1 mL solution of 10% NaCl to 10 mL gold sol in the pres...

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