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Reaction Kinetics

Rate of reaction when concentration of reactants are taken as unity is called_________________?

August 30, 2021March 18, 2019 by admin
Rate of reaction when concentration of reactants are taken as unity is called_________________?

A. Arrhenius constant
B. Molecularity
C. Specific rate constant
D. Ideal rate constant

Categories Chemistry Mcqs, Reaction Kinetics

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__________________?

August 30, 2021March 18, 2019 by admin
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

Categories Chemistry Mcqs, Reaction Kinetics

In rate expression the concentration of reactants is negative. It shows_______________?

August 30, 2021March 18, 2019 by admin
In rate expression the concentration of reactants is negative. It shows_______________?

A. Concentration of reactant does not change
B. Concentration of product increases
C. Concentration of reactant decreases
D. Concentration of reactant increases

Categories Chemistry Mcqs, Reaction Kinetics

Sum of exponents of molar concentration is called___________________?

August 30, 2021March 18, 2019 by admin
Sum of exponents of molar concentration is called___________________?

A. Order of reaction
B. Molecularity
C. Rate of reaction
D. Average of reaction

Categories Chemistry Mcqs, Reaction Kinetics

On increasing the temperature the rate of reaction increases mainly because_________________?

August 30, 2021March 18, 2019 by admin
On increasing the temperature the rate of reaction increases mainly because_________________?

A. The activation energy of the reaction increases
B. Concentration of the reacting molecules increases
C. Collision frequency increases
D. None of these

Categories Chemistry Mcqs, Reaction Kinetics

The addition of a catalyst to the reaction system__________________?

August 30, 2021March 18, 2019 by admin
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

Categories Chemistry Mcqs, Reaction Kinetics

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

August 30, 2021March 18, 2019 by admin
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

Categories Chemistry Mcqs, Reaction Kinetics

Which statement is incorrect about catalyst___________________?

August 30, 2021March 18, 2019 by admin
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

Categories Chemistry Mcqs, Reaction Kinetics

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

August 30, 2021March 18, 2019 by admin
Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

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

Categories Chemistry Mcqs, Reaction Kinetics

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

August 30, 2021March 18, 2019 by admin
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

Categories Chemistry Mcqs, Reaction Kinetics
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