DP Chemistry (last assessment 2024)
Question 18M.1.sl.TZ1.21
| Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.1.sl.TZ1.21 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Deduce | Question number | 21 | Adapted from | N/A |
21.
[Maximum mark: 1]
18M.1.sl.TZ1.21
Which equation shows oxygen undergoing reduction?
A. 2F2 + O2 → 2F2O
B. Na2O + H2O → 2NaOH
C. H2O2 + 2HI → 2H2O + I2
D. 2CrO42− + 2H+ Cr2O72− + H2O
[1]
Markscheme
C