DP Chemistry (last assessment 2024)
Question 19M.2.hl.TZ2.d(ii)
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.hl.TZ2.d(ii) |
| Level | hl | Paper | 2 | Time zone | TZ2 |
| Command term | Deduce | Question number | d(ii) | Adapted from | N/A |
d(ii).
[Maximum mark: 1]
19M.2.hl.TZ2.d(ii)
Ethyne, C2H2, reacts with oxygen in welding torches.
Product B, CH3CHO, can also be synthesized from ethanol.
Deduce the average oxidation state of carbon in product B.
[1]
Markscheme
–1 [✔]
Examiners report
Most candidates were able to calculate oxidation state of carbon in B.
