DP Chemistry (first assessment 2025)

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Question 19M.2.SL.TZ2.3b(i)

Date	May 2019	Marks available	[Maximum mark: 1]	Reference code	19M.2.SL.TZ2.3b(i)
Level	SL	Paper	2	Time zone	TZ2
Command term	State	Question number	b(i)	Adapted from	N/A

b(i).

[Maximum mark: 1]

19M.2.SL.TZ2.3b(i)

(b(i))

State one analytical technique that could be used to determine the ratio of ¹⁴N : ¹⁵N.

[1]

Markscheme

mass spectrometry/MS [✔]

Examiners report

All candidates, with very few exceptions, answered this correctly.

Syllabus sections

Structure 3. Classification of matter » Structure 3.2—Functional groups: Classification of organic compounds » Structure 3.2.8—Mass spectrometry (MS) of organic compounds can cause fragmentation of molecules. Deduce information about the structural features of a compound from specific MS fragmentation patterns.