DP Chemistry (last assessment 2024)
Question 19M.1.hl.TZ1.28
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.hl.TZ1.28 |
| Level | hl | Paper | 1 | Time zone | TZ1 |
| Command term | Question number | 28 | Adapted from | N/A |
28.
[Maximum mark: 1]
19M.1.hl.TZ1.28
Which product will be obtained at the anode (positive electrode) when molten NaCl is electrolysed?
A. Na (l)
B. Cl (g)
C. Cl2 (g)
D. Na (s)
[1]
Markscheme
C
Examiners report
57 % of candidates correctly identified products of electrolysis at the anode with the incorrect answers being split by the remaining 43 %