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GCSE AQA Higher Combined Science Chemistry · Topic 7 of 11

Topic 7: Organic chemistry – GCSE AQA Higher Combined Science Chemistry revision notes

Choose a subtopic. Topic 7: Organic chemistry covers Carbon compounds as fuels and feedstock, Reactions of alkenes and alcohols (chemistry only), and Synthetic and naturally occurring polymers (chemistry only) in GCSE AQA Higher Combined Science Chemistry. 8 lessons in 3 subtopics.

Revise Topic 7: Organic chemistry for GCSE AQA Higher Combined Science Chemistry, including Carbon compounds as fuels and feedstock.

8

Lessons

3

Subtopics

What this topic covers

Topic 7: Organic chemistry has 3 subtopics:

  • Carbon compounds as fuels and feedstock
  • Reactions of alkenes and alcohols (chemistry only)
  • Synthetic and naturally occurring polymers (chemistry only)

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Frequently asked questions

What is Topic 7: Organic chemistry?

Topic 7: Organic chemistry covers Carbon compounds as fuels and feedstock, Reactions of alkenes and alcohols (chemistry only), and Synthetic and naturally occurring polymers (chemistry only) in GCSE AQA Higher Combined Science Chemistry. 8 lessons in 3 subtopics.

What is LPG?

LPG, or liquefied petroleum gas, is a crude oil fraction containing short-chain hydrocarbons. The From Crude Oil to Modern Life - Fuels and Petrochemicals notes cover this in full.

What is crude oil?

Crude oil is a finite fossil fuel found in rocks, formed from the remains of ancient biomass, mainly plankton, buried in mud millions of years ago. The What is crude oil and where does it come from? notes cover this in full.

What does volatile mean?

Volatile means a substance evaporates easily. The From Crude Oil to Modern Life - Fuels and Petrochemicals notes cover this in full.

How is crude oil formed?

Crude oil formed from plankton that died millions of years ago, sank to the bottom of the oceans and was buried under layers of mud and sediment. The What is crude oil and where does it come from? notes cover this in full.

What is the general formula for alkanes?

The general formula for alkanes is CnH2n+2, where n is the number of carbon atoms. The Understanding alkanes - the main hydrocarbons in crude oil notes cover this in full.

What is a hydrocarbon?

A hydrocarbon is a compound containing only hydrogen and carbon atoms. The What is crude oil and where does it come from? notes cover this in full.

What is cracking in chemistry?

Cracking is the process of breaking down large hydrocarbon molecules into smaller, more useful ones using heat and/or catalysts. The Introduction to Cracking and Its Methods notes cover this in full.

What is the test for alkenes?

The test for alkenes is to add bromine water and shake: bromine water turns from orange to colourless if an alkene is present. The Alkenes: Properties and Testing notes cover this in full.

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