DP Chemistry (last assessment 2024)
Question 19M.1.sl.TZ1.30
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.sl.TZ1.30 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Question number | 30 | Adapted from | N/A |
30.
[Maximum mark: 1]
19M.1.sl.TZ1.30
What is the degree of unsaturation (index of hydrogen deficiency) for the molecule?
A. 1
B. 2
C. 4
D. 5
[1]
Markscheme
D
Examiners report
IHD was the worst answered question on Paper 1, with a low discriminatory index so handled poorly by all candidates.