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. $A{l}^{3+ }< N{a}^{+ }< B{a}^{2+}$

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

Select the correct option based on statements below:

Select the correct option based on statements below:

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. $\frac{x}{m}=k{p}^{-1}$

Brownian motion of colloidal particles is caused by:

On increasing the temperature:

1. The extent of adsorption increases in physisorption.

2. The extent of adsorption decreases in physisorption.

3. No effect on adsorption.

4. The extent of adsorption first decreases, then increases.

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. $N_2$

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.

Measuring Zeta potential is useful in determining which of the following property of a colloidal solution:

1. Solubility.

2. Stability of the colloidal particles.

3. Size of the colloidal particles.

4. Viscosity.