DP Chemistry (last assessment 2024)
Question 19M.3.hl.TZ2.b
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.hl.TZ2.b |
| Level | hl | Paper | 3 | Time zone | TZ2 |
| Command term | Outline | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
19M.3.hl.TZ2.b
This question is about global warming.
Outline one approach to controlling industrial emissions of carbon dioxide.
[1]
Markscheme
Any one of:
capture where produced «and store» [✔]
use scrubbers to remove [✔]
use as feedstock for synthesising other chemicals [✔]
carbon credit/tax/economic incentive/fines/country specific action [✔]
use alternative energy
OR
stop/reduce use of fossil fuels for producing energy [✔]
use carbon reduced fuels «such as methane» [✔]
increase efficiency and reduce energy use [✔]
Note: Do not accept “planting more trees”.
Accept specific correct examples.
Examiners report
This part was reasonably answered although there were many candidates who gave vague answers that did not receive marks.
