CAIE IGCSE Chemistry 11.3.6 Petroleum Fraction Trends Up the Questions
Work through real CAIE IGCSE Chemistry questions to compare petroleum fractions by chain length, boiling point, volatility and viscosity.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- describe the trend up the column: shorter chains have higher volatility, lower boiling points and lower viscosity
- link longer hydrocarbon chains to higher viscosity and lower flammability
- use fractionating-column position and properties to identify refinery gas, bitumen or the least volatile fraction
CAIE IGCSE Chemistry 11.3.6 Petroleum Fraction Trends Up the Questions question 1
[Maximum number: 1]
Increasing the number of atoms in one molecule of a hydrocarbon increases the amount of energy released when it burns.
What is the correct order?
less energy
released
more energy
released
ethene
ethane
methane
ethene
methane
ethane
methane
ethane
ethene
methane
ethene
ethane
D
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