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Entry Test MCQ :: Reaction Kinetics


31.  A substance which increases the reactivity of enzyme is called
A. Promoters B. Inhibitors
C. Stimulators D. Non-activators

32.  Addition of tetraethyl lead in petrol is example of
A. ve catalysis B. ?ve catalysis
C. auto catalysis D. anti catalysis

33.  When a product acts as catalyst then it is called
A. Autocatalsis B. ?ve catalysis
C. ve catalysis D. self catalysis

34.  End name of enzyme is
A. yl B. ase
C. one D. al

35.  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

36.  For determining the order of reaction we use
A. Refractometric method B. Dilatometric method
C. Optical activity method D. Half life method

37.  Energy of activation for backward reaction is less than forward reaction for ________ reaction
A. Endothermic B. Exothermic
C. Moderate D. Fast

38.  The unit of slope in Arrhenius plot to calculate the energy of activation is
A. K-1 B. ?F
C. K D. ?C

39.  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

40.  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




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