AQA GCSE Chemistry
Crude Oil
Atoms, elements, compounds, formulae, equations and the foundations of chemistry.
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Top Tips
- Crued oil takes millions of years to form.
- Complete combustion gives CO2 and H2O
- Fractional distillation: heat until vapourised; temperature gradient; condense; different fractions have different boiling points
Additional Resources
📘 Specification
AQA GCSE Chemistry: Organic Chemistry
The official specification covering crude oil, hydrocarbons, alkanes,
fractional distillation, trends in hydrocarbon properties, cracking and alkenes.
🛢️ Crude Oil
Seneca: Crude Oil
Free AQA GCSE revision and interactive questions on the origin of crude oil,
hydrocarbons and crude oil as a mixture of compounds.
🏭 Fractional Distillation
Seneca: Process of Fractional Distillation
Interactive revision explaining evaporation, condensation, the temperature
gradient in the column and how crude oil is separated into fractions.
⚗️ Cracking
Seneca: Cracking
Free interactive revision on catalytic and steam cracking, why cracking is useful,
and the formation of shorter alkanes and alkenes.
📖 Detailed Explanation
Chemguide: Crude Oil & Fractional Distillation
A clear illustrated explanation of crude oil and how hydrocarbons with different
boiling points separate inside an industrial fractionating column.
🚀 Challenge / Extend
Chemguide: Cracking Hydrocarbons
Go further into why hydrocarbons are cracked, the difference between catalytic
and steam cracking, and how industry produces useful fuels and alkenes.
🎲 Quiz
Generate a 10-question quiz on Crude Oil.
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⭐ Challenge
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Challenge questions, Grade 8–9 tasks and mastery badges can go here later.