Organic ChemistryMedium Exam FrequencyAQA

Combustion

Revise Combustion in Organic Chemistry for GCSE Chemistry with 20 exam-style questions and 15 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

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The Great Oxygen Hunt

Introduction 2

Complete vs Incomplete Combustion

Deep Dive 3

Combustion Types — Visual Comparison

Diagram 4

Why Oxygen Availability Determines Products

How It Works 5

Balancing Combustion Equations

Worked Example 6

Combustion Products Summary

Key Facts 7

Key Definitions

Definitions 8

Common Misconceptions

Misconceptions 9

Memory Aid: Clean and Dirty Combustion

Memory Aid 10

Exam Focus: Combustion

Exam Focus 11

Exam Tips: Combustion

Exam Tips 12

Topic Summary: Combustion of Hydrocarbons

Summary

Sample Flashcards

What is combustion?

Combustion is the reaction of a substance with oxygen, releasing energy as heat and light (burning)

What is complete combustion?

Complete combustion occurs when there is plenty of oxygen, producing only carbon dioxide (CO₂) and water (H₂O)

Sample Questions

What are the only products formed during the complete combustion of a hydrocarbon?

A. Carbon dioxide and water
B. Carbon monoxide and water
C. Carbon dioxide and carbon monoxide
D. Carbon (soot) and water

1 markfoundation

Explain why carbon monoxide (CO) is toxic to humans. [3 marks]

3 marksstandard

exam-style questions

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