Crude Oil
Most of the energy used worldwide comes from coal, crude oil and natural gas. Crude oil is a mixture of mostly hydrocarbons - mostly alkanes. It is converted into a small number of fractions by fractional distillation.

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More in Alkanes
- Cracking and Reforming
- Complete Combustion
- Incomplete Combustion
- Oxides of Sulfur and Nitrogen
- Catalytic Converters
- Alternative Fuels
- Free Radical Substitution
All 8 lessons in Alkanes · All OCR A-level Organic Chemistry topics