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The coagulation power of an effective io...

The coagulation power of an effective ion carrying the charge opposite to the sol particles has been illustrated by

A

Brownian movement

B

Gold number

C

Tyndal effect

D

Hardy-Schulz rule

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The correct Answer is:
D
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The coagulating power of an electrolyte for Aresenious sulphide sol decreases in the order

Coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separate from the continuous phase. The minimum concentration of an electrolyte in milli-moles per litre of the electrolyte solution which is required to cause the coagulation of colloidal sol is called coagulation value. Therefore higher is the coagulating power of effective ion, smaller will be the coagulation value. Coagulation value of the electrolyte alpha 1/("coagulating power") The coagualtion value of different electrolytes are different. This behaviour can be easily understood by hardy-schulze rule which states. "The greater is the valency of the effective ion greater is its precipitating power." As_2S_3 sol is negatively charged, capacity to precipitate it is highest in which ion ?

Coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separate from the continuous phase. The minimum concentration of an electrolyte in milli-moles per litre of the electrolyte solution which is required to cause the coagulation of colloidal sol is called coagulation value. Therefore higher is the coagulating power of effective ion, smaller will be the coagulation value. Coagulation value of the electrolyte alpha 1/("coagulating power") The coagualtion value of different electrolytes are different. This behaviour can be easily understood by hardy-schulze rule which states. "The greater is the valency of the effective ion greater is its precipitating power." The coagulation of colloidal particles of the sol can be caused by :

The coagulation of colloidal particles of the sol can be caused by

The coagulation of colloidal particles of the sol can be caused by

(A) : Addition of CH_(3)COOH and HCOOH electrolytes causes coagulation by neutralising the charge of the colloid (latex) (R) : Rubber particles are negatively charged

The most effective coagulating agent among the following for Sb_2S_3 sol is

Arsenous sulphide sol is prepared by passing H_2S through asenous oxide solution the charge developed on the particles is due to adsorption of

AAKASH SERIES-REVISION EXERCISE -SURFACE CHEMISTRY
  1. Brownian movement is mainly is due to

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  2. When an electrolyte is added to a colloidal sol it

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  3. The coagulation power of an effective ion carrying the charge opposite...

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  4. Which electrolyte is least effective in causing coagulation of +ve fer...

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  5. The capacity of an ion to coagulate a colloidal sol depends on

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  6. Lyophilic sols are more stable than lyophobic sols because

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  7. A liquid is found to scatter a beam of light but leaves no residance w...

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  8. Cellulose dispersed in ethanol is called

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  9. At CMC the surfactant molecules

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  10. Alum helps in purifying water by

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  11. On addiction of 1ml solution of 10% NaCl to 10ml gold sol in the prese...

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  12. Gelatin protects

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  13. The coagulation of colloidal particles of the sol can be caused by

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  14. Gelatin is used as an ingredient in the manufacture of icecreame for

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  15. Gold number is minimum in case of

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  16. Gold number of a lyophilic solution is such property that

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  17. In the coagulation of a positive sol, flocculation powers of CI^- , SO...

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

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  19. Which is used for ending charge on colloidal solution

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  20. The coagulating power of an electrolyte for arsenious sulphide decreas...

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