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AQA · GCSE · Chemistry

Organic Chemistry
Practice Questions

20 AQA GCSE Chemistry questions on Organic Chemistry, 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 Organic Chemistry.

Try 2 sample questions on Organic Chemistry

Question 1 · 1 mark · Difficulty 1/3

Which of the following is the correct molecular formula for ethane?

  1. CH₄
  2. C₂H₄
  3. C₂H₆
  4. C₃H₈
Show answer & explanation
✓ Answer: CC₂H₆
Ethane is an alkane with two carbon atoms. Alkanes follow the general formula CₙH₂ₙ₊₂, so ethane (n=2) has the formula C₂H₆. C₂H₄ is ethene, an alkene.
Question 2 · 1 mark · Difficulty 1/3

Bromine water is added to two test tubes, one containing hexane and one containing hexene. What is the correct observation?

  1. Both solutions remain orange-brown
  2. Both solutions decolourise immediately
  3. Hexane decolourises the bromine water; hexene does not
  4. Hexene decolourises the bromine water; hexane does not
Show answer & explanation
✓ Answer: DHexene decolourises the bromine water; hexane does not
Hexene is an alkene and contains a C=C double bond that undergoes addition reactions with bromine, decolourising the orange-brown bromine water. Hexane is a saturated alkane and does not react with bromine water under normal conditions, so it remains orange-brown.
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20 questions · 25 min · free

AQA GCSE Chemistry: Organic Chemistry FAQ

How many AQA GCSE Chemistry questions on Organic Chemistry are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Organic Chemistry for AQA GCSE 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 AQA 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 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 Organic Chemistry 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 Organic Chemistry 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 Organic Chemistry typically tested on AQA GCSE Chemistry papers?
Organic Chemistry 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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