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The amount of electrolytes required to c...

The amount of electrolytes required to coagulate a given amount of AgI colloidal solution (-ve charge) will be in the order

A

`NaNO_3 gt Al(NO_3)_3 gt Ba(NO_3)_2`

B

`Al(NO_3)_3 gt Ba(NO_3)_2 gt NaNO_3 `

C

`Al(NO_3)_3 gt NaNO_3 lt Ba(NO_3)_2 `

D

`NaNO_3 gt Ba(NO_3)_2 gt Al(NO_3)_3`

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the minimum amount of an electrolyrte required to cause coagulation of a sol is called :

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 amount of solute required to prepare 10 litres of decimolar solution is:

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 size of particles in suspension , true solution and colloidal solution varies in the order :

What name is given to the scattering of light by colloidal solution?

coagulation 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 mili-moles per litre of the electrolyte solution which 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 of the electrolyte. the coagulation of colloidal particles to the sol can be caused by : heating, adding electrolyte, adding oppositely charged sol, all of these.

Explain electrophoresis. How is it helpful in causing coagulation of colloidal solutions ?

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Identify the positively charged sol.

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  2. The stability of a lyophobic colloid is due to

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  3. The amount of electrolytes required to coagulate a given amount of AgI...

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  4. Gold sol can be prepared by

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  5. For Freundlich isotherm, a graph of log x/m is plotted against log P. ...

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  6. What is the composition of bronze metal alloy?

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  7. The electrolyte having maximum flocculation value for Ag//Ag^+ sol is

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  8. Which of the following curves is in accordance with Freundlich adsorpt...

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  9. Give appropriate answer for the following question- Which alloy is mad...

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  10. Point out the false statement.

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  11. Enzymatic reactions are given in Column I and enzymes in Column II ...

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  12. In which one of the following properties, physisorption and chemisorpt...

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  13. Give appropriate answer of the following question- Which alloy is made...

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  14. Name an alloy which is made up of Fe, Al, Ni, Co?

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  15. Give an appropriate answer of the following question- Which alloy is u...

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  16. Fill the blanks with appropriate answer- Fish plates in the railways t...

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  17. Fill in the blanks- is used for welding filling of cracked metallic b...

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  18. Methylene blue, from its aqueous solution, is adsorbed on activated ch...

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  19. Fill in the blanks- alloy is used to make electric heaters.

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  20. Fill in the blanks- Coin metal is used in the making of and .

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