21.Acts as a catalytic promoter in Haber’s process of ammonia production
A. Out
B. Iron
C. platinum
D. molybdenum
Option”D” is correct
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
Option”C” is correct
23.In which process vanadium pentoxide is used as a catalyst
A. contact process
B. haber process
C. salve process
D. Sis Room Process
Option”A” is correct
24.The role of catalysts in chemical reactions, change
A. heat of reaction
B. output of the reaction
C. activation energy
D. equilibrium constant
Option”C” is correct
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
Option”B” is correct
26.catalyst a substance that increases the rate of a chemical reaction
A. increases
B. reduces
C. converts
D. none of these
Option”C” is correct
27.who discovered the catalyst
A. bergilius
B. rutherford
C. Lewis
D. kosel
Option”A” is correct
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
Option”B” is correct
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
Option”B” is correct
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
Option”A” is correct