DP Chemistry (last assessment 2024)

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Question 19N.3.sl.TZ0.15a

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Date November 2019 Marks available [Maximum mark: 2] Reference code 19N.3.sl.TZ0.15a
Level sl Paper 3 Time zone TZ0
Command term Apply, State Question number a Adapted from N/A
a.
[Maximum mark: 2]
19N.3.sl.TZ0.15a

Codeine, morphine and diamorphine (heroin) are derived from opium.

(a)

State the names of two functional groups present in all three molecules, using section 37 of the data booklet.

[2]

Markscheme

Any two of:
benzene/aromatic ring ✔
«tertiary» amino «group» ✔
ethenylene/1,2-ethenediyl «group» ✔
ether «group» ✔

NOTE: Accept “phenyl” for “benzene ring” although there are no phenyl groups as the benzene ring in this compound is a part of a polycyclic structure.
Do not accept “arene” or “benzene” alone.
Accept “amine” for “amino «group»”.
Accept “alkenyl/alkene/vinylene” for ethenylene/1,2-ethenediyl «group».

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