DP Chemistry (last assessment 2024)
Question 18M.3.hl.TZ1.5b
| Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.3.hl.TZ1.5b |
| Level | hl | Paper | 3 | Time zone | TZ1 |
| Command term | Outline | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
18M.3.hl.TZ1.5b
Aluminium is produced by the electrolysis of a molten electrolyte containing bauxite.
(b)
The diagram illustrates the crystal structure of aluminium metal with the unit cell indicated. Outline the significance of the unit cell.
[1]
Markscheme
the smallest repeating unit «from which the crystal structure can be derived»
Accept “building block that the structure is made from”.
[1 mark]
