OCR ASH032Frequently examined

Chemistry A H032: Analytcal techniques (IR and MS) Topical Past Paper Questions

OCR AS Chemistry A (H032) past-paper questions on Analytcal techniques (IR and MS), free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.

Sample questions

Summer (May/Jun) 2024· 2

* Compound X is an organic compound with two functional groups. Compound X has the percentage composition by mass: C, 40.91%; H, 4.54%; O, 54.55%. Compound X does not decolourise bromine water. A scientist analyses compound X using mass spectrometry and infrared spectroscopy. Mas…

Summer (May/Jun) 2023· 1

Pentan-2-ol and pentan-3-ol are structural isomers with the molecular formula $ \text{C}_5\text{H}_{12}\text{O} $ and $ M_r = 88 $. The isomers can be distinguished from the fragment ions in their mass spectra. Which fragment ion would you expect to be present in only one of thes…

Winter (Oct/Nov) 2021· 1

Which statement about absorption of radiation is correct? A Absorption of IR radiation can break covalent bonds, forming radicals. B Absorption of IR radiation causes covalent bonds to vibrate more. C Absorption of UV radiation is a major cause of global warming and climate chang…

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