DP Chemistry (last assessment 2024)
Question 21M.2.hl.TZ1.3e
| Date | May 2021 | Marks available | [Maximum mark: 2] | Reference code | 21M.2.hl.TZ1.3e |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Label | Question number | e | Adapted from | N/A |
e.
[Maximum mark: 2]
21M.2.hl.TZ1.3e
Magnetite, Fe3O4, is another ore of iron that contains both Fe2+ and Fe3+.
(e)
The figure shows an apparatus that could be used to electroplate iron with zinc. Label the figure with the required substances.
[2]
Markscheme
left electrode/anode labelled zinc/Zn AND right electrode/cathode labelled iron/Fe ✔
electrolyte labelled as «aqueous» zinc salt/Zn2+ ✔
Accept an inert conductor for the anode.
Accept specific zinc salts such as ZnSO4.