DP Chemistry (last assessment 2024)
Question 18M.3.sl.TZ2.c
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.sl.TZ2.c |
| Level | sl | Paper | 3 | Time zone | TZ2 |
| Command term | Deduce | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
18M.3.sl.TZ2.c
Lipids provide energy and are an important part of a balanced diet.
Deduce the structure of the lipid formed by the reaction between lauric acid and glycerol (propane-1,2,3-triol) using section 34 of the data booklet.
[2]
Markscheme
glycerol backbone
ester formula AND linkage
Accept a skeletal structure.
Penalize missing hydrogens or incorrect bond connectivities once only in Option B.
Accept condensed formula for ester.
[2 marks]
