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Give the order of coagulating power of C...

Give the order of coagulating power of `Cl, SO_(4)^(2-), PO_(4)^(3-)` in the coagulation of positive sols.

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The order of coagulating power of PO_(4)^(3-), SO_(4)^(2-) and Cl^(-) in the coagulating of a given positive sol is

Ca_(3)(PO_(4))_(2) is

The shape of PO_(4)^(3-) ion is

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 order of Cl - O bond energy in ClO^(-), ClO_(2)^(-), ClO_(3)^(-), CIO_(4)^(-) is

Arrange the MnO_(4)^(-) and VO_(2)^(+) ions in the increasing order of their oxidising power.

VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-SURFACE CHEMISTRY (SHORT ANSWER TYPE QUESTIONS)
  1. Give the order of coagulating power of Cl, SO(4)^(2-), PO(4)^(3-) in t...

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  2. Amongst Na^(+), Ba^(2+), Al^(3+), which coagulates negative sol readil...

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  3. What is an emulsion ? Give two examples.

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  4. How emulsions are classified ? Give one example for each type of emuls...

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  5. State Hardy-Schulze rule .

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  6. What are different types of adsorption ? Give any four differences bet...

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  7. How can the constants k and n of the Freundlich adsorption equation be...

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  8. What is catalysis ? How is catalysis classified ? Give two examples fo...

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  9. Name any six enzyme catalysed reaction.

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  10. Explain Tyndall effect and Brownian movement.

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  11. What are lyophilic and lyophobic sols ? Give one example for each type...

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  12. Describe Bredig's arc method of preparation of colloids with a neat di...

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  13. Define Gold Number.

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  14. Explain Zone refining.

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  15. How is alumina separated from silica in the bauxite ore associated wit...

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  16. Give examples to differentiate roasting and calcination.

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  17. Explain the purification of sulphide ore by Froth Floatation Method.

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  18. Outline the principles of refining of metals by the following methods....

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  19. Outline the principles of refining of metals by the following methods....

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  20. Outline the principles of refining of metals by the following methods....

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