A-LevelChemistryAnalytical techniques9701/12 · Feb/Mar 2025 · Q401 Mark

Compound L contains carbon atoms. It is analysed in a mass spectrometer. The table shows the relative abundance of the only two peaks recorded with m/e greater than 127. m/e relative abundance 128 50 129 5.5 How many carbon atoms are present in one molecule of compound L?

D10

✓ Correct answer

D: 10

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Topic: Analytical techniques, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2025 Paper 1 Variant 2, question 40.

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