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The protective power of colloids is meas...

The protective power of colloids is measured in the unit ................. .

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All colloids :

What are protective colloids ?

the protective power of the lyophilic colloids is expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0.025 g of starch the coagultion is just prevented . the gold number of starch is : 0.025, 0.25, 2.5, 25.

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. which of the following statement (S) is / are correct? higher the gold number, more protective power of colloid, Lower the gold number, more protective power, Higher the coagulation value, more the coagulation power, lower the coagulation value, higher the coagulation power.

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of mili - gram of the protective colloid which prevent the coagulation of 10 mL of red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. gold number given an indication of : protective nature of colloids, purity of gold in suspension, the charge on a colloidal solution of gold, gram of gold per litre of solution.

Colloidal sol is :

The efficiency of a protective colloid is described in terms of

What are colloids ?

The unit of power of lens is…… .

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Milk is a colloidal solution of ................ in ............ .

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  2. Colloids can be purified by peptization. (True/False)

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  3. The protective power of colloids is measured in the unit ................

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  4. The curve showing the variation of adsorption with pressure at constan...

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  5. Differentiate between absorption and adsorption.

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  6. What do you understand by true solution, colloidal solution and suspen...

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  7. Comment on the statement that “colloid is not a substance but a state ...

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  8. An atom of element E contains 3 protons, 3 electrons and 4 neutrons : ...

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  9. How are colloids classified on the basis of : interaction between disp...

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  10. How will you prepare a collidal solution of gold?

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  11. Explain electrophoresis. How is it helpful in causing coagulation of c...

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  12. Write two differences between sols and emulsions.

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  13. Explain the following- Uses of bronze alloy.

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  14. State whether the statement is true or false- Bronze alloy is used to ...

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  15. Electrical wires are made up of which alloy?

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  16. State whether the statement is true or false- Bell metal is made of co...

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  17. State whether the given statement is true or false- Gun metal is made ...

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  18. Explain the following- Uses of Gun metal.

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  19. State whether the statement is true or false- Magnelium alloy is made ...

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  20. State whether the statement is true or false- German silver alloy is u...

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