According to Freundlich adsorption isotherm, at high pressure, the value of 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.
2.
3.
4.
What happens during electro-osmosis of Fe(OH)3 sol?
1. | Sol particles move towards the anode. |
2. | Sol particles move towards the cathode of a sol. |
3. | The higher the gold number, the greater will be the protective power of a lyophilic colloid. |
4. | The dispersion medium moves towards the anode. |
The equation that represents a Freundlich adsorption isotherm is:
1.
2.
3.
4.
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.
2. NaCl
3.
4.
The coagulating power of electrolytes with ions Na+, Al3+, and Ba2+for arsenic sulphide sol increases in the order :
1.
2.
3.
4.
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?
1. | Enzymes are mostly proteinous in nature. |
2. | Enzyme action is specific. |
3. | Enzymes are denaturized by ultraviolet rays at high temperatures. |
4. | Enzymes are least reactive at an optimum temperature. |
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.