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Edexcel · GCSE · Combined Science (Double Award)

Chemistry: Earth, Fuels and Materials
Practice Questions

15 Edexcel GCSE Combined Science (Double Award) questions on Chemistry: Earth, Fuels and Materials, 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 Chemistry: Earth, Fuels and Materials.

Try 2 sample questions on Chemistry: Earth, Fuels and Materials

Question 1 · 1 mark · Difficulty 1/3

Which functional group is present in all carboxylic acids?

  1. -COO- attached to a carbon chain
  2. -CHO attached to a carbon chain
  3. -COOH attached to a carbon chain
  4. -OH attached to a carbon chain
Show answer & explanation
✓ Answer: C — -COOH attached to a carbon chain
The carboxyl group, -COOH, defines carboxylic acids and consists of both a carbonyl (C=O) and a hydroxyl (-OH) group on the same carbon. Option A describes an alcohol functional group. Option C describes an aldehyde. Option D shows a carboxylate ion (the deprotonated form), not the neutral acid.
Question 2 · 1 mark · Difficulty 1/3

What is complete combustion?

  1. Burning producing soot
  2. Burning very slowly
  3. Burning without oxygen
  4. Burning a hydrocarbon in excess oxygen producing carbon dioxide and water only
Show answer & explanation
✓ Answer: D — Burning a hydrocarbon in excess oxygen producing carbon dioxide and water only
Complete: hydrocarbon + plenty of O₂ → CO₂ + H₂O. Incomplete: limited O₂ → CO (toxic) and/or C (soot) + H₂O.
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Edexcel GCSE Combined Science (Double Award): Chemistry: Earth, Fuels and Materials FAQ

Is Kramizo free for Edexcel GCSE students preparing for Combined Science (Double Award)?
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 Chemistry: Earth, Fuels and Materials practice with other Combined Science (Double Award) topics or even switch to a totally different Edexcel 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 Chemistry: Earth, Fuels and Materials questions aligned to the official Edexcel GCSE Combined Science (Double Award) syllabus?
Every question is written against the published Edexcel GCSE Combined Science (Double Award) specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real Edexcel 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 Edexcel.
How is Chemistry: Earth, Fuels and Materials typically tested on Edexcel GCSE Combined Science (Double Award) papers?
Chemistry: Earth, Fuels and Materials appears across multiple question types on real Edexcel GCSE Combined Science (Double Award) 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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