DP Chemistry (first assessment 2025)
Question 21M.2.SL.TZ1.e(ii)
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.2.SL.TZ1.e(ii) |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | Deduce | Question number | e(ii) | Adapted from | N/A |
e(ii).
[Maximum mark: 1]
21M.2.SL.TZ1.e(ii)
Deduce the change in the oxidation state of sulfur.
[1]
Markscheme
+6
OR
−2 to +4 ✔
Accept “6/VI”.
Accept “−II, 4//IV”.
Do not accept 2- to 4+.
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.2—Electron transfer reactions » Reactivity 3.2.1—Oxidation and reduction can be described in terms of electron transfer, change in oxidation state, oxygen gain/loss or hydrogen loss/gain. Deduce oxidation states of an atom in a compound or an ion. Identify the oxidized and reduced species and the oxidizing and reducing agents in a chemical reaction.