DP Chemistry (last assessment 2024)
Question 21M.2.hl.TZ1.3f
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.2.hl.TZ1.3f |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Outline | Question number | f | Adapted from | N/A |
f.
[Maximum mark: 1]
21M.2.hl.TZ1.3f
Magnetite, Fe3O4, is another ore of iron that contains both Fe2+ and Fe3+.
(f)
Outline why, unlike typical transition metals, zinc compounds are not coloured.
[1]
Markscheme
« Zn2+» has a full d-shell
OR
does not form « ions with» an incomplete d-shell ✔
Do not accept “Zn is not a transition metal”.
Do not accept zinc atoms for zinc ions.
