A-LevelChemistryChemical bonding9701/12 · May/June 2021 · Q41 Mark

The structural formula of alliin is shown. [Diagram of alliin with bond angles x, y, z marked] What are the approximate bond angles x, y and z in a molecule of alliin?

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.

A90°, 90°, 109°

B120°, 109°, 90°

C120°, 120°, 109°

D180°, 109°, 109°

✓ Correct answer

C: 120°, 120°, 109°

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

Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 4.

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