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Sodium lauryl sulphate is a :...

Sodium lauryl sulphate is a :

A

Cationic sol

B

Anionic sol

C

Neutral sol

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Sodium lauryl sulphate `[CH_(3)(CH_(2))_(11)SO_(3)O-Na^(+)]` has a sulphate head group which is hydrophilic while the −12 carbon long chain is hydrophobic. It is an anionic surfactant as defined by the sulphate head group.
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ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. Size of colloidal particles is

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  2. At the critical micelle concentration, the surfactant molecules :

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  3. Sodium lauryl sulphate is a :

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  4. surface tension of lyophilic sols is

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  5. An example of colloidal sol in which the affinity of the sol particles...

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

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

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

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  9. the stability of lyophilic colloids is due to

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  10. When a substance comes in colloidal state the surface area of the part...

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  11. In lyophilic sols the attraction of sol particles towards the medium i...

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  12. which of the following does not contain a hydrophobic structures.

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  13. Which of the following is not a method of preparation of colloidal sol...

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  14. White of an egg is partly coagulated by heating which can be again obt...

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  15. An emulsifier is a substance which :

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  16. which one of the sols acts as protetive colloid ?

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  17. Blood is purified by :

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  18. On adding few drops of dilutie HCl or FeCl(3) to freshly precipitated ...

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  19. The density of gold is 19g//cm^3. If 1.9xx10^-4g of gold is dispersed ...

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  20. Colloidal solution can be purified by :

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