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Types of Solutions Based on Concentration of the Solution

Which one of ...

Question

Which one of the following statements is incorrect regarding lyophilic sols ?

A

High concentration of dispersed phase can be obtained easily

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B

Coagulation is reversible

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C

Viscosity and surface tension are same as dispersion medium

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D

Viscosity and surface tension are same as dispersion medium

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Solution

The correct option is C
Viscosity and surface tension are same as dispersion medium

For lyophillic sols, viscosity is higher than that of dispersion medium & surface tension is lower than that of dispersion medium

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Similar questions

Q. Assertion :Lyophilic sols are reversible sols. Reason: Lyophilic sols can be reconstituted by simply remixing the dispersed phase and dispersion medium.

Q. Write the dispersed phase and dispersion medium of the following colloidal systems:
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What are lyophilic and lyophobic colloids? Which of these sols can be easily coagulated on the addition of small amounts of electrolytes?

Viscosity of lyophilic colloidal solution is same as that of dispersion medium.

Which of the following statements are correct?

1. On the application of an electric field, the particles of lyophobic sol may move either direction or not move at all.

2. The surface tension of lyophobic sols is similar to that of the dispersion medium.

3. Electro-osmosis is the movement of the particles of dispersion medium under the influence of an electric field.

Q. Sols are colloidal systems in which the dispersion medium is liquid (such as water) and the dispersed phase is solid.

State whether True or False.

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Types of Solutions Based on Concentration of the Solution

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