DP Chemistry (last assessment 2024)
Question 18M.3.sl.TZ1.a
Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.3.sl.TZ1.a |
Level | sl | Paper | 3 | Time zone | TZ1 |
Command term | Identify | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
18M.3.sl.TZ1.a
The increased concentration of carbon dioxide in the atmosphere is thought to result from the increased combustion of fossil fuels such as petroleum.
Identify an element, other than carbon and hydrogen, found at significant concentrations in fossil fuels.
[1]
Markscheme
nitrogen/N
OR
oxygen/O
OR
sulfur/S
Accept “phosphorus/P”.
[1 mark]
