DP Chemistry (last assessment 2024)
Question 21M.2.hl.TZ1.b(i)
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.2.hl.TZ1.b(i) |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Justify | Question number | b(i) | Adapted from | N/A |
b(i).
[Maximum mark: 1]
21M.2.hl.TZ1.b(i)
Ethanol is obtained by the hydration of ethene, C2H4.
Justify why ethene has only a single signal in its 1H NMR spectrum.
[1]
Markscheme
hydrogen atoms/protons in same chemical environment ✔
Accept “all H atoms/protons are equivalent”.
Accept “symmetrical”
