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O-LevelChemistryOrganic Chemistry5070/11 · May/June 2025 · Q341 Mark

Petroleum is separated into fractions in a fractionating column. Which property of the fractions increases from the bottom to the top of the column?

Aboiling point
Bchain length
Cviscosity
Dvolatility

✓ Correct answer

D: volatility

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About this question

Topic
Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, May/June 2025 Paper 1 Variant 1, question 34.

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