A colloidal system having a solid substance as a dispersed phase and a liquid as a dispersion medium is classified as .........

1.  Solid sol

2.  Gel

3.  Emulsion

4.  Sol

The values of colligative properties of colloidal solution are of small order in comparison to those shown by true solutions of same concentration because of colloidal particles .........

1. Exhibit enormous surface area

2.  Remain suspended in the dispersion medium

3.  Form lyophilic colloid

4.  Are comparatively less in number

The process responsible for the formation of delta at a place where rivers meet the sea is 

1.  Emulsification

2.  Colloid formation

3.  Coagulation

4.  Peptisation

Which of the following process is not responsible for the presence of electric charge on the sol particles?

1.  Electron capture by sol particles

2.  Adsorption of ionic species from solution

3.  Formation of Helmholtz electrical double layer

4.  Absorption of ionic species from solution

The correct statements among the following are:

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Phenomenon that occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented-

a.  Reverse osmosis takes place

b.  Electroosmosis takes place

c.  Dispersion medium begins to move

d. Dispersion medium becomes stationary

The correct choice among the given is -

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

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

1. Molecular colloid.

2. Associated colloid.

3. Macromolecular colloid.

4.  Lyophilic colloid.

Tyndall effect is shown by 

Freshly prepared precipitate sometimes gets converted to colloidal solution by ......

1.  Coagulation

2.  Electrolysis

3.  Diffusion

4.  Peptisation

The electrolytes with maximum coagulating value for Ag/Ag⁺ sol is: 

1.  Na₂S

2.  Na₃PO₄

3.  Na₂SO₄

4.  NaCl