O-LevelChemistryOrganic Chemistry5070/11 · May/June 2016 · Q371 Mark

How can alkenes be manufactured?

Aby polymerisation reactions

Bby the addition of hydrogen to unsaturated vegetable oils

Cby the combustion of alkanes

Dby the cracking of hydrocarbons

✓ Correct answer

D: by the cracking of hydrocarbons

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2016 Paper 1 Variant 1, question 37.

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