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Date May 2019 Marks available 1 Reference code 19M.1.hl.TZ2.39
Level HL Paper 1 Time zone TZ2
Command term Question number 39 Adapted from N/A

Question

What can be deduced from the infrared (IR) spectrum of a compound?

A. Number of hydrogens

B. Number of hydrogen environments

C. Bonds present

D. Molar mass

Markscheme

C

Examiners report

82 % of the candidates identified the bonds present as the information that can be deduced from an infrared spectrum. The most commonly chosen distractor was B (the number of hydrogen environments).

Syllabus sections

Core » Topic 11: Measurement and data processing » 11.3 Spectroscopic identification of organic compounds
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Core » Topic 11: Measurement and data processing
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