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HomeCXC CSEC ChemistryCatalysis and the Role of Catalysts
CXC · CSEC · Chemistry

Catalysis and the Role of Catalysts
Practice Questions

20 CXC CSEC Chemistry questions on Catalysis and the Role of Catalysts, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Catalysis and the Role of Catalysts

Question 1 · 1 mark · Difficulty 1/3

A catalyst is a substance that

  1. increases the rate of a chemical reaction and is used up in the process
  2. increases the rate of a chemical reaction without being chemically changed
  3. decreases the rate of a chemical reaction without being chemically changed
  4. increases the yield of products in a reversible reaction
Show answer & explanation
✓ Answer: Bincreases the rate of a chemical reaction without being chemically changed
Award 1 mark for identifying that a catalyst speeds up reactions and remains unchanged. A is incorrect because catalysts are NOT used up. C is incorrect because catalysts increase, not decrease, reaction rates. D is incorrect because catalysts do not change the position of equilibrium or final yield.
Question 2 · 1 mark · Difficulty 1/3

In the Haber Process for manufacturing ammonia, which catalyst is used?

  1. Vanadium(V) oxide
  2. Nickel
  3. Iron
  4. Manganese(IV) oxide
Show answer & explanation
✓ Answer: CIron
Award 1 mark for correct identification of the Haber Process catalyst. A is incorrect because vanadium(V) oxide is used in the Contact Process. B is incorrect because nickel is used in hydrogenation reactions. D is incorrect because manganese(IV) oxide is used in hydrogen peroxide decomposition.
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CXC CSEC Chemistry: Catalysis and the Role of Catalysts FAQ

How many CXC CSEC Chemistry questions on Catalysis and the Role of Catalysts are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Catalysis and the Role of Catalysts for CXC CSEC 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 CXC 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 CXC CSEC 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 Catalysis and the Role of Catalysts practice with other Chemistry topics or even switch to a totally different CXC 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 Catalysis and the Role of Catalysts questions aligned to the official CXC CSEC Chemistry syllabus?
Every question is written against the published CXC CSEC 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 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.
How is Catalysis and the Role of Catalysts typically tested on CXC CSEC Chemistry papers?
Catalysis and the Role of Catalysts appears across multiple question types on real CXC CSEC 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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