A-LevelChemistryHydrocarbons9701/12 · Oct/Nov 2014 · Q301 Mark

β-carotene is responsible for the orange colour of carrots. [Figure showing the chemical structure of β-carotene.] β-carotene is oxidised by hot, concentrated, acidified KMnO₄. When an individual molecule of β-carotene is oxidised in this way, many product molecules are formed. How many of these product molecules contain a ketone functional group?

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D11

✓ Correct answer

B: 6

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Topic: Hydrocarbons, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 2, question 30.

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