Surface Chemistry Class 12 MCQs Questions with Answers

1. Colloidal solutions are classified on the basis of:

2. The oxide of nitrogen which acts as a catalyst in lead chamber process is:

3. Given below are a few electrolytes, indicate which one among them will bring about the coagulation of a gold sol quickest and in the least of concentration?

4. The volume of gases H2, CH4, CO2 and NH3 adsorbed by 1 gm charcoal at 293 K can be given in the order?

5. Homogeneous catalysis does mean:

6. Which one of the following is alyophilic colloid?

7. Lyophillic colloids are stable due to:

8. The potential difference between the fixed charged layer and the diffused layer having opposite charge is called:

9. Which one of the following is an example of adsorption?

10. The movement of colloidal particles towards the oppositely charged electrodes on passing electric current is known as:

11. Which one of the following forms micelles in aqueous solution above certain concentration?

12. Which of the following kinds of catalysis can be explained by the adsorption theory?

13.  Which of the following is not correct for enzyme catalysis?

14.  The cause of Brownian movement is:

15. In Freundlich adsorption isotherm x/m = Kp1/n, the value of ‘n’ at low pressure is:

16. Which one of the following is correctly matched?

17. The process of separating a crystalloid, from a colloid by filtration is called

18.  At CMC (Critical Micellisation Cone) the surface molecules:

19. Shape selective catalysis is a reaction catalysed by:

20.  Volume of one mole of any gas at NTP is: