Quiz  /  Chemical Kinetics Gate & PSU MCQ Questions With Answers

  • 1. 
    What does [ ] denote?

  • concentration, M
  • concentration, m
  • concentration, mass %
  • squared

  • 2. 
    Which of the following is expressions represents correctly rate of following reaction?X + Y → Z + Q ΔH = +22kj/mol

  • Rate = +Δ[X] / Δt
  • Rate = +Δ[Y] / Δt
  • Rate = +Δ[Z] / Δt
  • Rate = -Δ[Q] / Δt

  • 3. 
    When you double the concentration of this reactant the rate of the reaction doesn't change. It is ______ order

  • First
  • Second
  • Zero

  • 4. 
    For second order reaction, the initial concentration of reactant A is 0.24 M. If the rate constant is 8.1 x 10-2 M-1 s-1, what is the concentration of A after 29 seconds?

  • 0.02 M
  • 0.15 M
  • 0.30 M
  • 0.45 M

  • 5. 
    The first order rate constant for the decomposition of 0.5 M compound A at 100oC is 0.03 min-1. Calculate the half-life of A.

  • 1.5 min
  • 8.3 min
  • 23.1 min
  • 66.7 min

  • 6. 
    To measure rate of reaction, we can monitor change in which of the following?

  • Reactants only
  • Products only
  • Reactants or products

  • 7. 
    What is the difference between integrated method and differential method

  • number of order
  • Raw data at y axis
  • Raw data at x axis
  • Non of the above

  • 8. 
    2 reactants which are dye (0.0001 M) and OH- (1.0 M) reacts to form products. The rate law for this reaction is Rate = k[OH-]x[dye]y

  • True
  • False
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