A substance which increases the reactivity of enzyme is called_________________?

A. Promoters
B. Inhibitors
C. Stimulators
D. Non-activators

When the reaction completes in more than one steps rate of reaction will be determined by________________?

A. Fast step
B. Slowest step
C. All steps
D. Molecularity of the reaction

Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

A. Endothermic
B. Exothermic
C. Moderate
D. Fast

Which statement is incorrect about catalyst___________________?

A. It is used in smaller amount
B. Decrease activation energy
C. Specific in action
D. It affects specific rate constant

Which of the following type of reaction is 3rd order reaction_________________?

A. 2n2o5 = 2n2o4 + o3
B. No + o3 ? no2 + o2
C. 2fecl3 + 6ki ? 2fei2 + 6kcl + i2
D. None of these

Energy of reactant higher than energy of product favours A. Endothermic_______________?

B. Exothermic
C. Moderate reaction
D. No reaction

Which of the following will have very high rate of reaction ?

A. Double decomposition reaction
B. Neutralization reaction
C. Ionic reactions
D. All of above

Anything which increases rate of reaction without being involved in the reaction________________?

A. Promoter
B. Catalyst
C. Inhibitor
D. All of the above

When catalysts and reactants are in more than one phase it is________________?

A. Homogeneous catalysis
B. Heterogeneous catalysis
C. Catalysis
D. Ea

For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?

A. Single
B. Square
C. Cube
D. Raise to power four