Most Important Reaction Kinetics Quiz Test Online

1) In the rate equation Rate=k[A]ᵐ[B]ⁿ , the exponents $m$ and $n$ represent:

2) The rate of reaction decreases with time because:

3) According to the law of mass action, the rate of reaction is proportional to:

4) For a third order reaction, the half-life is:

5) What are the units of the rate of reaction when concentration is in mol dm⁻³ and time in seconds?

6) Which of the following is true about the rate constant k?

7) The instantaneous rate of reaction is:

8) The order of a reaction can be:

9) The order of reaction is experimentally determined by:

10) The units of the rate constant for a second order reaction are:

11) The half-life period of a radioactive isotope undergoing first order decay is:

12) The overall order of the reaction 2A+B→products with rate law Rate=k[A]²[B]¹ is:

13) The reaction intermediate is:

14) A pseudo first order reaction is characterized by:

15) The rate determining step in a reaction mechanism is:

16) The half-life of a second order reaction is:

17) The half-life of a first order reaction:

18) A reaction whose rate is independent of the concentration of reactants is called:

19) For the reaction 2NO₂ + CO → NO + CO₂ + NO₃, the rate law is found to be:

20) The rate equation for the decomposition of nitrogen pentoxide (N₂O₅) is experimentally found to be:

1) The half-life of a second order reaction is given by:

2) In a reaction where the rate is proportional to [A]¹[B]⁰, the overall order is:

3) If a reaction has rate law Rate = k[A]¹ᐟ²,  the order of reaction is:

4) The rate of a reaction is measured by:

5) Which factor generally increases the rate constant k of a reaction?

6) The activation energy of a reaction is:

7) Which of the following is true for the half-life of a first order reaction?

8) Which of the following best describes a pseudo first order reaction?

9) For a zero order reaction, the rate is:

10) The rate law for the reaction 2FeCl₃ + 6KI → 2FeI₃ + 6KCl + I₂ is experimentally found to be:

11) The half-life of a zero order reaction is:

12) In a reaction where the rate law is Rate = k[A]⁰, what happens to the rate if the concentration of A is doubled?

13) The rate constant k has units of s⁻¹ in which order of reaction?

14) In a reaction where the rate law is Rate = k[A]¹[B]⁰ , the overall order is:

15) For a reaction A → products, the rate law is Rate = k[A]ᵐ. If doubling [A] increases the rate by four times, the order m is:

16) The rate constant for a reaction at a given temperature is:

17) Which of the following reactions is likely to be zero order?

18) For a reaction with rate law Rate = k[A]², if the concentration of A is tripled, the rate will:

19) If a reaction has a rate constant k = 0.05 s⁻¹, what is the half-life of this first order reaction?

20) The rate determining step is often:

21) Which of the following statements about reaction intermediates is correct?

22) The rate of reaction is measured by: