O-LevelChemistryOrganic Chemistry5070/11 · Oct/Nov 2023 · Q351 Mark

Two products of the separation of petroleum are the lubricating oil fraction and the kerosene/paraffin fraction. Which statement is correct?

AThe lubricating oil fraction is more viscous than the kerosene/paraffin fraction.

BThe lubricating oil fraction is more volatile than the kerosene/paraffin fraction.

CThe lubricating oil fraction has lower boiling points than the kerosene/paraffin fraction.

DMolecules in the lubricating oil fraction have smaller chain lengths than molecules in the kerosene/paraffin fraction.

✓ Correct answer

A: The lubricating oil fraction is more viscous than the kerosene/paraffin fraction.

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 1, question 35.

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