DP Chemistry (last assessment 2024)
Question 18M.3.sl.TZ1.a.i
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.sl.TZ1.a.i |
| Level | sl | Paper | 3 | Time zone | TZ1 |
| Command term | Identify | Question number | a.i | Adapted from | N/A |
a.i.
[Maximum mark: 2]
18M.3.sl.TZ1.a.i
Saturated lipids found in butter and unsaturated lipids found in fish oil readily become rancid.
Identify the type of rancidity occurring in saturated lipids and the structural feature that causes it.
[2]
Markscheme
hydrolytic «rancidity»
ester group
Accept a formula for ester group.
[2 marks]
