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.Management Sciences
Category: Reaction Kinetics
The substances that reduces the effectiveness of a catalyst are called ___________________?
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A. Promoters
B. Poisoning catalysts
C. Inhibitors
D. pro-catalysts
When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in__________________?
A. I and II quadrant
B. II and III quadrant
C. III and IV quadrant
D. II and IV quadrant
The addition of a catalyst to the reaction system__________________?
A. Increases the rate of forward reaction only
B. Increases the rate of reverse reaction
C. Increases the rate of forward but decreases the rate of backward reaction
D. Increases the rate of forward as well as backward reaction equally
The value of activation energy is primarily determined by_______________?
A. Temperature
B. Effective collision
C. Concentration of reactants
D. Chemical nature of reactants and products
A substance which increases the reactivity of enzyme is called_________________?
A. Promoters
B. Inhibitors
C. Stimulators
D. Non-activators
Energy of reactant higher than energy of product favours A. Endothermic_______________?
B. Exothermic
C. Moderate reaction
D. No reaction
Anything which increases rate of reaction without being involved in the reaction________________?
A. Promoter
B. Catalyst
C. Inhibitor
D. All of the above
A catalyst can not effect__________________?
A. Products
B. Chemical equilibrium
C. Reactants
D. both A & B
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