DP Chemistry (last assessment 2024)
Question 19M.1.sl.TZ1.23
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.sl.TZ1.23 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Question number | 23 | Adapted from | N/A |
23.
[Maximum mark: 1]
19M.1.sl.TZ1.23
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
46 % of candidates correctly identified products of electrolysis at the anode with the incorrect answers being split by the remaining 54 %