The probable reasons of the exothermic nature of adsorption is:

1.	Adsorption leads to a decrease in the residual forces on the surface of the adsorbent.
2.	∆S is negative.
3.	Both (1) and (2)
4.	None of the above.

Which of the following statement is false?

Enzymes are:

1. Biochemical catalysts.

2. Protein molecules of high molecular masses.

3. Both (1) and (2)

4. None of the above.

The phenomenon of the scattering of light by a colloidal solution known as:

1. Zeeman effect.

2. Tyndall effect.

3. Electrophoresis.

4. None of the above.

Heterogeneous catalysis is shown in:

Shape selective catalysis is:

The correct match amongst the following is -

(D.P = dispersed phase, and D.M = dispersion medium)

Options:

The graph between $\log \frac{\mathrm{x}}{\mathrm{m}}$ vs log p is given below:

What is the value of the slope?

1. ${\left(\frac{1}{2}\right)}^{\mathrm{n}}$

2. n

3. $\frac{1}{\mathrm{n}}$

4.$\frac{1}{{\left(\mathrm{n}\right)}^2}$

An adsorption isotherm is a plot between:

The factors that influence the adsorption of a gas on a solid is/are:

1. Nature of the gas.

2. Surface area of the solid.

3. Effect of pressure.

4. All of the above.