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KEAM Order of Reaction — practice questions

Explore 1 free Order of Reaction questions in KEAM Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Order of Reaction questions and exercises with answers

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The order of a reaction:Read the answer and worked solution →

Worked practice questions

The order of a reaction:

  1. Is always equal to 1 for gaseous reactions
  2. Equals the molecularity of the rate-determining step always
  3. Must always be a positive integer
  4. Can be zero, fractional or negative — it is experimentally determined
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Correct answer: D. Can be zero, fractional or negative — it is experimentally determined

Order is experimentally determined and can be zero (e.g. NO₂ + CO → ... in CO), fractional (e.g. 3/2 for CH₃CHO decomposition) or even negative.

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More Chemistry topics

Ideal and Non-Ideal SolutionsIdeal SolutionsNon-Ideal SolutionsReactions in Aqueous SolutionElectrochemistryElectrochemical SeriesSolutionsCoordination Compounds