O-LevelChemistryOrganic Chemistry5070/11 · Oct/Nov 2014 · Q141 Mark

Petroleum is a mixture of hydrocarbons which can be separated into fractions by fractional distillation. Which row shows the fractions in order of decreasing boiling point? highest b.p. → lowest b.p. A diesel paraffin naphtha petrol B paraffin naphtha petrol diesel C naphtha petrol diesel paraffin D petrol naphtha paraffin diesel

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Adiesel paraffin naphtha petrol

Bparaffin naphtha petrol diesel

Cnaphtha petrol diesel paraffin

Dpetrol naphtha paraffin diesel

✓ Correct answer

A: diesel paraffin naphtha petrol

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 1, question 14.

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