Skip to content
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs
TestMCQs.org
  • Home
  • Subjects
  • Dynamic Quiz
  • Jobs
  • Blog
  • About Us
  • Contact Us

Home > Chemistry > Chemical Kinetics

What is the rate-determining step in a multi-step reaction mechanism?

A. The step with the largest number of intermediates
B. The fastest step
C. The slowest step
D. The step with the highest energy barrier

Answer: The slowest step


Additional Information: The rate-determining step is the slowest step in a reaction mechanism, as it controls the overall reaction rate.


Subjects: Chemical Kinetics, Chemistry

Related MCQs

  • What is the half-life of a zero-order reaction?
  • What type of reaction is represented by the equation C + O2 → CO2?
  • Which type of reaction has a rate that is proportional to the square of the concentration of one reactant?
  • Which of the following reactions is likely to be faster?
  • Which of the following best describes the rate of a chemical reaction?
  • What happens to the reaction rate if a catalyst is added?
  • What is the effect of a high activation energy on the rate of a reaction?
  • In which reaction does a product form more rapidly as a result of increased temperature?
  • What effect does increasing concentration have on the rate of a zero-order reaction?
  • What happens to the rate of a reaction at equilibrium?
  • The initial rate of a reaction can be measured by:
  • What is a characteristic feature of a second-order reaction?
  • Which type of reaction rate law has a constant half-life regardless of initial concentration?
  • What does the Arrhenius equation describe?
  • Which of the following is NOT a factor that affects the rate of a chemical reaction?

MCQs Menu

  • Biology MCQs
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Geography MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs

Engineering MCQs

  • Civil MCQs
  • Electrical MCQs
  • Mechanical MCQs
  • Privacy Policy
  • Terms & Conditions
  • Disclaimer
  • Sitemap
© 2025 TestMCQs.org • Built with GeneratePress