DP Chemistry (last assessment 2024)
Question 22M.1.sl.TZ1.23
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.sl.TZ1.23 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Determine | Question number | 23 | Adapted from | N/A |
23.
[Maximum mark: 1]
22M.1.sl.TZ1.23
How many electrons are needed when the following half-equation is balanced using the lowest possible whole numbers?
__ NO3– (aq) + __ H+ (aq) + __ e– → __ NO (g) + __ H2O (l)
A. 1
B. 2
C. 3
D. 5
[1]
Markscheme
C