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

Arrange the following diagrams in correct sequence of steps involved in the mechanism of catalysis, in accordance with modern adsorption theory.

1.  I$\to$II$\to$III$\to$IV$\to$V

2.  I$\to$III$\to$II$\to$IV$\to$V

3.   I$\to$III$\to$II$\to$V$\to$IV

4.   I$\to$II$\to$III$\to$V$\to$IV

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

The correct curve for Freundlich's adsorption isotherm is:

1.		2.
3.		4.

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 phenomenon that  is applicable to the process shown in the figure is : 

1.  Absorption

2.  Adsorption

3.  Coagulation

4.  Emulsification

The correct statements among the following are:

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

The correct statements among the following about solid catalysts is -

1. a and b
2. b and c
3. c and d
4. a and d

At the equilibrium position in the process of adsorption ..........

1.   ΔH > 0

2.   ΔH = TΔS

3.   ΔH > TΔS

4.   ΔH < TΔS