DP Chemistry (last assessment 2024)
Question 21M.2.hl.TZ1.a(i)
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.2.hl.TZ1.a(i) |
| Level | hl | Paper | 2 | Time zone | TZ1 |
| Command term | Draw | Question number | a(i) | Adapted from | N/A |
a(i).
[Maximum mark: 1]
21M.2.hl.TZ1.a(i)
Oxygen exists as two allotropes, diatomic oxygen, O2, and ozone, O3.
Draw a Lewis (electron dot) structure for ozone.
[1]
Markscheme
✔
Accept any combination of lines, dots or crosses to represent electrons.
Do not accept structures that represent 1.5 bonds.
