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Rates of reaction and kinetics
Practice Questions

40 CXC CAPE Chemistry questions on Rates of reaction and kinetics, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Rates of reaction and kinetics.

Try 2 sample questions on Rates of reaction and kinetics

Question 1 · 1 mark · Difficulty 1/3

On a Maxwell–Boltzmann distribution, what does the total area under the curve represent?

  1. The total energy of the system
  2. The activation energy
  3. The total number of molecules
  4. The rate constant
Show answer & explanation
✓ Answer: C — The total number of molecules
Award 1 mark. The curve plots the number of molecules with each energy, so the area is the whole population. It stays constant when temperature changes, which is why the peak flattens as it shifts.
Question 2 · 1 mark · Difficulty 1/3

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

  1. mol dm⁻³
  2. s⁻¹
  3. dm³ mol⁻¹
  4. mol dm⁻³ s⁻¹
Show answer & explanation
✓ Answer: D — mol dm⁻³ s⁻¹
Award 1 mark. Rate = change in concentration ÷ time, so the units are concentration per second, mol dm⁻³ s⁻¹.
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20 questions · 25 min · free

CXC CAPE Chemistry: Rates of reaction and kinetics FAQ

Is Kramizo free for CXC CAPE students preparing for Chemistry?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Rates of reaction and kinetics practice with other Chemistry topics or even switch to a totally different CXC CAPE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Rates of reaction and kinetics questions aligned to the official CXC CAPE Chemistry syllabus?
Every question is written against the published CXC CAPE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC CAPE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CXC CAPE.
How is Rates of reaction and kinetics typically tested on CXC CAPE Chemistry papers?
Rates of reaction and kinetics appears across multiple question types on real CXC CAPE Chemistry papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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