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At high concentration of soap in water, ...

At high concentration of soap in water, soap behaves as …… .

A

molecular colloid

B

associated colloid

C

macromolecular colloid

D

lyophilic colloid

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The correct Answer is:
B
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What type of solutions are formed on dissolving different concentrations of soap in water ?

There are cartain substances which behave as normal strong electrolytes at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggregated particles. Such colloids are called associated coloids and the aggreagated particles are called micelles. Soaps and detergents are the examples of associated colloids. The formation of micelles takes place above certain concentration called critical micrllization concentration (CMC) and a characteristic temperature. Which part of the soap (RCOO^(-)) dissolves grease and forms micelle ?

Colloidal particles of soap sol in water are

Critical micelle concentration for a soap solution is 1.5 xx 10^(-4)" mol L"^(-1) . Micelle formation is possible only when the concentration of soap solution in mol L^(-1) is

PRADEEP-SURFACE CHEMISTRY -NCERT (EXAMPLAR PROBLEMS) (WITH ANSWERS, HINTS AND SOLUTIONS)
  1. Extent of adsorption of adsorbate from solution phase increases with ...

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  2. Which one of the following is not applicable to the phenomenon of adso...

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  3. Which of the following is not a favourable condition for physical adso...

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  4. Physical adsorption of a gaseous species may change to chemical adsorp...

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  5. In physisorption , adsorbent does not show specificity for any particu...

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  6. Which of the following is NOT an example of adsorption ?

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  7. On the basis of data given below predict which of the following gases ...

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  8. In which of the following reactions heterogeneous catalysis is involve...

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  9. At high concentration of soap in water, soap behaves as …… .

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  10. Which of the following will show Tyndall effect?

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  11. Method by which lyophobic sol can be protected.

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  12. Freshly prepared precipitate sometimes gets converted to colloidal sol...

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  13. Which of the following electrolytes will have maximum coagulating valu...

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  14. A colloidal system having a solid substance as a dispersed phase and a...

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  15. The values of colligative properties of colloidal solution are of smal...

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  16. Arrange the following diagrams in correct sequence of stept in voolved...

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  17. Which of the following process is responsible for the formation of del...

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

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  19. Which of the following process is not responsible for the presence of ...

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  20. Which of the following options are correct?

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