| 21. | Acts as a catalytic promoter in Haber’s process of ammonia production |
A. Out | |
B. Iron | |
C. platinum | |
D. molybdenum |
| 22. | The catalyst used in the manufacture of H₂SO₄ in the contact process is – |
A. Pb | |
B. Fe + Mo | |
C. V₂ O₅ | |
D. CO + Ni |
| 23. | In which process vanadium pentoxide is used as a catalyst |
A. contact process | |
B. haber process | |
C. salve process | |
D. Sis Room Process |
| 24. | The role of catalysts in chemical reactions, change |
A. heat of reaction | |
B. output of the reaction | |
C. activation energy | |
D. equilibrium constant |
| 25. | Which of the following is correct regarding catalyst 1. It increases the rate of reaction 2. It increases activation energy It decreases activation energy 4. It is spent in the reaction Code : |
A. 1 and 2 | |
B. 1 and 3 | |
C. 1 and 4 | |
D. 3 and 4 |
| 26. | catalyst a substance that increases the rate of a chemical reaction |
A. increases | |
B. reduces | |
C. converts | |
D. none of these |
| 27. | who discovered the catalyst |
A. bergilius | |
B. rutherford | |
C. Lewis | |
D. kosel |
| 28. | When the physical states of both the reactants and the catalyst are same, then the catalyst is called |
A. heterogeneous catalyst | |
B. homogenous stimulus | |
C. causative agent | |
D. induced catalyst |
| 29. | When the physical states of both the reactants and the catalyst are different, then the catalyst is called |
A. homogenous stimulus | |
B. heterogeneous catalyst | |
C. induced catalyst | |
D. causative agent |
| 30. | A negative catalyst is one that |
A. reduce the rate of reaction | |
B. increase the rate of reaction | |
C. change the rate of the reaction | |
D. inspirers behave like catalysts |