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Which of the following forms cationic mi...

Which of the following forms cationic micelles above certain concentration ?

A

sodium dodecyl sulphate

B

sodium acetate

C

urea

D

cetyltrimethyl ammonium bromide

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The correct Answer is:
D
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There are certain substances which behave as normal, strong electrolyte at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggeregated particles. Such colloidals called associated colloids and the aggeregated particles are called micelles. The formation of micelles take place above certain concentration called critical micelization concentration called critical micellization concentration (CMC) and a characteristic temperature. Micelles are formed only

There are certain substances which behave as normal, strong electrolyte at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggeregated particles. Such colloidals called associated colloids and the aggeregated particles are called micelles. The formation of micelles take place above certain concentration called critical micelization concentration called critical micellization concentration (CMC) and a characteristic temperature. What type of molecules form micelles?

OP TANDON-THE COLLOIDAL STATE-Objective Questions
  1. Tyndall effect in shown by :

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  2. On addition of 1 mL solution of 10% NaCl to 10 mL gold sol in the pres...

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  3. Which of the following forms cationic micelles above certain concentra...

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  4. The smog is essentially caused by the presence of :

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  5. Which one of the following is most effective in causing the coagulatio...

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  6. The fresh precipitate can be transformed in colloidal state by

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  7. Oils and fats are obtained by saponification potassium steatrate. Its ...

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  8. Which one of the following forms micelles in aqueous solution above ce...

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  9. Muddy water can be purified through coagulation using

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  10. The dispersed phase in colloidal iron (III) hydroxide and collodial go...

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  11. An emulsifier is a substance which :

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  12. Gold number is associated with

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  13. Which one of the following is a false statement?

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  14. The presence of electric charge on colloidal particles is indicated by...

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  15. Which of the following properties are characteristic of lyophobic sols...

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  16. In a electrical field, the particles of a colloidal system move toward...

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  17. Cetyl trimethyl ammonium chloride is which type of detergent ?

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  18. The effective ion used in clarification of water is :

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  19. The number of moles of lead nitrate needed to coagulate 2 mole of coll...

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  20. Among the electrolytes Na, SO4 , CaCl4 , Al2(SO4)3 and NH4 Cl, the m...

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