DP Chemistry (last assessment 2024)
Question 19M.3.hl.TZ1.c(i)
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.hl.TZ1.c(i) |
| Level | hl | Paper | 3 | Time zone | TZ1 |
| Command term | Draw | Question number | c(i) | Adapted from | N/A |
c(i).
[Maximum mark: 1]
19M.3.hl.TZ1.c(i)
Natural gas is an energy source composed mainly of methane.
Methane can also be obtained by fractional distillation of crude oil.
[Source: Image used with kind permission of science-resources.co.uk]
Draw a circle on the diagram to show where the methane fraction is withdrawn.
[1]
Markscheme
[✔]
Examiners report
Required candidates to circle a fractionating tower to show where the methane fraction could be withdrawn. Despite the expectation that candidates know methane is a gas at room temperature, there were many varied answers to this question.
