DP Chemistry (last assessment 2024)
Question 18N.2.hl.TZ0.2b
| Date | November 2018 | Marks available | [Maximum mark: 1] | Reference code | 18N.2.hl.TZ0.2b |
| Level | hl | Paper | 2 | Time zone | TZ0 |
| Command term | Deduce | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
18N.2.hl.TZ0.2b
An organic compound containing carbon, hydrogen and oxygen has 62.02 % carbon and 10.43 % hydrogen by mass.
(b)
The infrared spectrum of the compound is shown. Deduce the functional group of the compound.
[1]
Markscheme
«absorption at wavenumber 1700−1750 cm–1» C=O/carbonyl ✔
Do not accept “ketone” or “aldehyde”.
