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CIE · IGCSE · Chemistry

Rates of Reaction
Practice Questions

6 CIE IGCSE Chemistry questions on Rates of Reaction, 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.

Try 2 sample questions on Rates of Reaction

Question 1 · 1 mark · Difficulty 1/3

What factors affect the rate of a chemical reaction?

  1. Only temperature
  2. Temperature, concentration, surface area, catalyst, and pressure (for gases)
  3. Only catalysts
  4. Only concentration
Show answer & explanation
✓ Answer: BTemperature, concentration, surface area, catalyst, and pressure (for gases)
All these factors relate to collision theory: they affect how often particles collide and with how much energy.
Question 2 · 1 mark · Difficulty 1/3

Why does increasing concentration increase reaction rate?

  1. Particles become larger
  2. More particles per unit volume means more frequent collisions
  3. The temperature increases
  4. Particles become lighter
Show answer & explanation
✓ Answer: BMore particles per unit volume means more frequent collisions
Higher concentration = more reactant particles in the same volume = more collisions per second = faster rate.
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CIE IGCSE Chemistry: Rates of Reaction FAQ

How many CIE IGCSE Chemistry questions on Rates of Reaction are there on Kramizo?
Kramizo currently has 6 exam-board-aligned practice questions on Rates of Reaction for CIE IGCSE Chemistry, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE 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 practice with other Chemistry topics or even switch to a totally different CIE 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 questions aligned to the official CIE IGCSE Chemistry syllabus?
Every question is written against the published CIE IGCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE 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 CIE.
How is Rates of Reaction typically tested on CIE IGCSE Chemistry papers?
Rates of Reaction appears across multiple question types on real CIE IGCSE 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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