DP Chemistry (last assessment 2024)
Question 22M.2.hl.TZ1.5a(v)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.hl.TZ1.5a(v) |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Identify | Question number | a(v) | Adapted from | N/A |
a(v).
[Maximum mark: 1]
22M.2.hl.TZ1.5a(v)
Organomagnesium compounds can react with carbonyl compounds. One overall equation is:
(a(v))
Identify the isomer of Compound B that exists as optical isomers (enantiomers).
[1]
Markscheme
butan-2-ol/CH3CH(OH)C2H5 ✔
Examiners report
Mediocre performance; some identified 2-methylpropan-1-ol or -2-ol, instead butan-2-ol/CH3CH(OH)C2H5 as the isomer that exists as an optical isomer.
