Edexcel International GCSE (9–1) Chemistry (Modular) 4XCH1 · 4.18
Why cracking is necessary
- Code
- 4.18
- In
- 4b Crude oil
- Topic
- 4 Organic chemistry: Part 1
- Course
- International GCSE (9–1) Chemistry (Modular) 4XCH1
- Board
- Edexcel
Grade boundaries·Edexcel command words
Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.
Points in 4b Crude oil
- 4.7 Crude oil as a mixture of hydrocarbons
- 4.8 Fractional distillation of crude oil
- 4.9 Fractions of crude oil and their uses
- 4.10 Trends in properties of crude oil fractions
- 4.11 Fuels
- 4.12 Complete and incomplete combustion
- 4.13 Carbon monoxide poisoning
- 4.14 Oxides of nitrogen from car engines
- 4.15 Sulfur dioxide from fuel impurities
- 4.16 Acid rain
- 4.17 Catalytic cracking
- 4.18 Why cracking is necessary