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HomeCIE IGCSE ChemistryThe Haber process and manufacture of ammonia
CIE · IGCSE · Chemistry

The Haber process and manufacture of ammonia
Practice Questions

20 CIE IGCSE Chemistry questions on The Haber process and manufacture of ammonia, each with instant feedback and a full examiner-style mark scheme.

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Question 1 · 1 mark · Difficulty 1/3

Which conditions are used in the Haber process to manufacture ammonia?

  1. A: 450°C, 200 atm, iron catalyst
  2. B: 200°C, 450 atm, platinum catalyst
  3. C: 450°C, 200 atm, vanadium(V) oxide catalyst
  4. D: 200°C, 200 atm, iron catalyst
Show answer & explanation
✓ Answer: AA: 450°C, 200 atm, iron catalyst
The Haber process uses approximately 450°C, 200 atm pressure, and an iron catalyst. Platinum is used in the Contact process, and vanadium(V) oxide is used in sulfuric acid manufacture.
Question 2 · 1 mark · Difficulty 1/3

What is the approximate ratio of nitrogen to hydrogen gas (by volume) fed into the Haber process reactor?

  1. A: 1 : 1
  2. B: 1 : 2
  3. C: 1 : 3
  4. D: 2 : 3
Show answer & explanation
✓ Answer: CC: 1 : 3
The equation N₂ + 3H₂ ⇌ 2NH₃ shows nitrogen and hydrogen react in a 1:3 molar ratio. The gases are fed in this same ratio to maximise efficiency and avoid wasting either reactant.
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CIE IGCSE Chemistry: The Haber process and manufacture of ammonia FAQ

How many CIE IGCSE Chemistry questions on The Haber process and manufacture of ammonia are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on The Haber process and manufacture of ammonia 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.
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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 The Haber process and manufacture of ammonia 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 The Haber process and manufacture of ammonia 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 The Haber process and manufacture of ammonia typically tested on CIE IGCSE Chemistry papers?
The Haber process and manufacture of ammonia 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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