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HomeAQA GCSE ChemistryOxidation and reduction in terms of electrons and oxygen
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Oxidation and reduction in terms of electrons and oxygen
Practice Questions

40 AQA GCSE Chemistry questions on Oxidation and reduction in terms of electrons and oxygen, 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 Oxidation and reduction in terms of electrons and oxygen.

Try 2 sample questions on Oxidation and reduction in terms of electrons and oxygen

Question 1 · 1 mark · Difficulty 1/3

Carbon is used to extract iron from iron oxide in a blast furnace. What is the carbon acting as?

  1. Electrolyte
  2. Oxidising agent
  3. Reducing agent
  4. Catalyst
Show answer & explanation
✓ Answer: CReducing agent
Award 1 mark. It takes the oxygen away from the iron oxide, so the iron is reduced; the carbon itself is oxidised to carbon dioxide in the process.
Question 2 · 1 mark · Difficulty 1/3

In terms of oxygen, what is oxidation?

  1. The loss of hydrogen by a substance
  2. The loss of oxygen by a substance
  3. The gain of oxygen by a substance
  4. The gain of electrons by a substance
Show answer & explanation
✓ Answer: CThe gain of oxygen by a substance
Award 1 mark. This is the older definition and is still the one used for reactions such as combustion, where no ions are involved.
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AQA GCSE Chemistry: Oxidation and reduction in terms of electrons and oxygen FAQ

Is Kramizo free for AQA GCSE 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 Oxidation and reduction in terms of electrons and oxygen practice with other Chemistry topics or even switch to a totally different AQA 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 Oxidation and reduction in terms of electrons and oxygen questions aligned to the official AQA GCSE Chemistry syllabus?
Every question is written against the published AQA GCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real AQA 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 AQA.
How is Oxidation and reduction in terms of electrons and oxygen typically tested on AQA GCSE Chemistry papers?
Oxidation and reduction in terms of electrons and oxygen appears across multiple question types on real AQA GCSE 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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