DP Chemistry (last assessment 2024)
Question 20N.3.hl.TZ0.c(ii)
| Date | November 2020 | Marks available | [Maximum mark: 1] | Reference code | 20N.3.hl.TZ0.c(ii) |
| Level | hl | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | c(ii) | Adapted from | N/A |
c(ii).
[Maximum mark: 1]
20N.3.hl.TZ0.c(ii)
Consider the structures of medicinal molecules in section 37 of the data booklet.
State the natural source from which codeine, morphine and diamorphine are obtained.
[1]
Markscheme
opium poppy/plants/seeds ✔
Accept “poppy” OR “opioid”.
Examiners report
The natural source from which codeine, morphine and diamorphine are obtained had to be stated. Most scored the single mark here for "poppy". Common errors included "willow tree" or "opium" alone, which was not deemed sufficient to score the mark.
