A-LevelChemistryAnalytical techniques9701/12 · Oct/Nov 2021 · Q301 Mark

The infra-red spectrum of Y is shown. [Figure showing an infra-red spectrum with transmittance % vs wavenumber /cm⁻¹] What could Y be?

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ACH3CO2C2H5

BCH2(OH)CH=CHCH2OH

CCH3(CH2)2CO2H

DCH2(OH)(CH2)2CHO

✓ Correct answer

B: CH2(OH)CH=CHCH2OH

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Topic: Analytical techniques, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2021 Paper 1 Variant 2, question 30.

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