DP Chemistry (first assessment 2025)
Question 22M.2.SL.TZ1.3c(ii)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.SL.TZ1.3c(ii) |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | Identify | Question number | c(ii) | Adapted from | N/A |
c(ii).
[Maximum mark: 1]
22M.2.SL.TZ1.3c(ii)
(c(ii))
Identify the strongest force between the molecules of Compound B.
[1]
Markscheme
hydrogen bonds ✔
Examiners report
Probably just over half the students correctly identified hydrogen bonding, with dipole-dipole being the most common wrong answer, though a significant number identified an intramolecular bond.
Syllabus sections
Structure 2. Models of bonding and structure » Structure 2.2—The covalent model » Structure 2.2.8—The nature of the force that exists between molecules is determined by the size and polarity of the molecules. Intermolecular forces include London (dispersion), dipole-induced dipole, dipole–dipole and hydrogen bonding. Deduce the types of intermolecular force present from the structural features of covalent molecules.