DP Chemistry (last assessment 2024)
Question 19M.3.hl.TZ2.5d
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.hl.TZ2.5d |
| Level | hl | Paper | 3 | Time zone | TZ2 |
| Command term | Suggest | Question number | d | Adapted from | N/A |
d.
[Maximum mark: 1]
19M.3.hl.TZ2.5d
Polymers have a wide variety of uses but their disposal can be problematic.
(d)
Suggest why the addition of plasticizers is controversial.
[1]
Markscheme
leach into foodstuffs/environment
OR
«unknown» health/environmental consequences [✔]
Note: Accept “plasticizers cannot be recycled”.
Examiners report
Several candidates wrote vague answers as to why the addition of plasticizers is controversial.
