According to Freundlich adsorption isotherm, at high pressure, the value of $\frac{\mathrm{x}}{\mathrm{m}}$ is - 

1. Directly proportional to the pressure.

2. Inversely proportional to the pressure.

3. Directly proportional to the square of the pressure.

4. Independent of the pressure.

Among the following options, the gas that will be more readily adsorbed on the surface of charcoal is:

1. $C{O}_2$             

2. $N{H}_3$               

3. ${\mathrm{Br}}_2$           

4. $N_2$

What happens during electro-osmosis of Fe(OH)₃ sol?

The equation that represents a Freundlich adsorption isotherm is: 

1. $\frac{x}{m}=k{p}^{0.3}$

2. $\frac{x}{m}=k{p}^{2.5}$

3. $\frac{x}{m}=k{p}^{-0.5}$

4. $\frac{x}{m}=k{p}^{-1}$

A colloid of Agl is formed by mixing AgNO₃ with an excess of Kl. The electrolyte with the greatest coagulation value for it is:

1. ${\mathrm{BaSO}}_4$

2. NaCl

3. ${\mathrm{MgCl}}_2$

4. ${\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3$

The coagulating power of electrolytes with ions Na⁺,  Al³⁺, and Ba²⁺${ rise }^{}$for arsenic sulphide sol increases in the order :

1. $A{l}^{3+ }< B{a}^{2+ }< N{a}^{+}$

2. $N{a}^{+ }< B{a}^{2+ }< A{l}^{3+}$

3. $B{a}^{2+ }< N{a}^{+ }< A{l}^{3+}$

4. $A{l}^{3+ }< N{a}^{+ }< B{a}^{2+}$

Which mixture of the solutions will lead to the formation of a negatively charged colloidal [AgI]I^- sol?

1. 50 mL of 0.1 M AgNO₃ + 50 mL of 0.1 M KI

2. 50 mL of 1 M AgNO₃ + 50 mL of 0.5 M KI

3. 50 mL of 1 M AgNO₃ + 50 mL of 2 M KI

4. 50 mL of 2 M AgNO₃ + 50 mL of 1.5 M KI

Which one of the following statements about enzyme catalysis is incorrect?

In the Freundlich adsorption isotherm, the value of 1/n is:
1. Between 0 and 1 in all cases.
2. Between 2 and 4 in all cases.
3. 1 in the case of physical adsorption.
4. 1 in the case of chemisorption.