A-LevelChemistryCarbonyl compounds9701/12 · Oct/Nov 2015 · Q281 Mark

Menthol and menthone are both found in peppermint oil. [Figure of menthol and menthone] Which statement about these compounds is correct?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ABoth compounds can undergo mild oxidation.

BBoth compounds will give an orange precipitate with 2,4-dinitrophenylhydrazine reagent.

CMenthol can be formed from menthone by reaction with NaBH4.

DMenthone gives a positive test when warmed with Tollens' reagent.

✓ Correct answer

C: Menthol can be formed from menthone by reaction with NaBH4.

Oracle Prep sorts past-paper questions by topic, so you can drill Carbonyl compounds and see which topics are most likely to come up next.

Topic: Carbonyl compounds, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 2, question 28.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content