4.7.1.1 · Crude Oil & Alkanes
What is crude oil, and how was it formed?
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A finite resource found in rocks. It is the remains of ancient biomass, mainly plankton, that was buried in mud.
AQA GCSE Chemistry · Topic 7
Organic Chemistry flashcards
51 cards on Organic Chemistry, every one written against a numbered point in section 4.7 of the AQA Chemistry spec. Here’s what the topic covers, and 4 cards to try.
- 51Flashcards
- 8Sub-topics
- 5Higher only
- 31Triple only
Try 4 cards from Organic Chemistry.
Answer each one in your head, then check. In the app, how well you knew it decides when you see it again.
4.7.1.2 · Fractional Distillation
How does fractional distillation separate crude oil?
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- Crude oil is heated until it evaporates
- The vapour rises up a column that is hot at the bottom and cooler at the top
- Each fraction condenses at the level where the temperature is below its boiling point
- Long-chain hydrocarbons condense near the bottom; short ones rise to the top
4.7.1.3 · Hydrocarbon Properties & Combustion
How do boiling point, viscosity and flammability change as hydrocarbon molecules get bigger?
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Boiling point increases. Viscosity increases (thicker). Flammability decreases (harder to ignite).
4.7.1.4 · Cracking & Alkenes
What is cracking?
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Breaking down long-chain hydrocarbons into smaller, more useful molecules, including alkanes and alkenes.
- +47more Organic Chemistry cards in the app, shown to you just before you’d forget them.Join the waitlist →
What’s in Organic Chemistry?
Every part of section 4.7 of the AQA spec, and how many cards cover it. Higher-only cards are hidden for Foundation students. Cards only on the separate Chemistry GCSE are hidden for Combined Science.
- 4.7.1.1Crude Oil & Alkanes6 cards
- 4.7.1.2Fractional Distillation4 cards
- 4.7.1.3Hydrocarbon Properties & Combustion4 cards
- 4.7.1.4Cracking & Alkenes6 cards
- 4.7.2.1–4.7.2.2AlkenesTriple only8 cards
- 4.7.2.3AlcoholsTriple only8 cards
- 4.7.2.4Carboxylic AcidsTriple only6 cards
- 4.7.3PolymersTriple only9 cards
Launching November 2026
The other 47 cards are in the app.
revolve. shows you each Organic Chemistry card just before you’d forget it, so ten minutes a day is enough. It opens to students soon: join the waitlist and we’ll email you once, when it does.