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A-LevelChemistryIntroduction to organic chemistry9701/12 · Oct/Nov 2019 · Q211 Mark

The diagram shows the skeletal formula of phenazine. [Figure 21.1] What is the empirical formula of phenazine?

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.

AC₆H₄N
BC₆H₆N
CC₁₂H₈N₂
DC₁₂H₁₂N₂

✓ Correct answer

A: C₆H₄N

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About this question

Topic
Introduction to organic chemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 2, question 21.

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