IB Chemistry HL 3.2.10 Hl H Nmr Spectroscopy Questions

Use real ¹H NMR spectra to count signals, interpret chemical shifts and integration ratios, and deduce organic structures from proton environments.

Exam points

Count distinct ¹H NMR signals and assign chemical environments from molecular symmetry and proton equivalence.
Interpret chemical shifts, integration traces, area ratios and splitting patterns to determine proton types and relative numbers.
Combine proton-NMR environments, shifts and integration with a molecular formula or other evidence to deduce and distinguish organic structures.

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Study 3.2.10 (HL)—¹H NMR spectroscopy conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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Organic compounds have many industrial applications.

The following organic compound, X, is used as a flavouring agent.

Figure for Question IB Chemistry HL 3.2.10 Hl H Nmr Spectroscopy Questions question 1 — IB Chemistry HL

Deduce the number of signals and their relative areas (integration traces) in an ${ }^{1} \mathrm{H}$ NMR spectrum of X.

Number of signals:
Relative areas:

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IB Chemistry HL 3.2.10 Hl H Nmr Spectroscopy Questions question 1