DP Chemistry (first assessment 2025)
Question 22N.1A.SL.TZ0.11
| Date | November 2022 | Marks available | [Maximum mark: 1] | Reference code | 22N.1A.SL.TZ0.11 |
| Level | SL | Paper | 1A | Time zone | TZ0 |
| Command term | Apply | Question number | 11 | Adapted from | N/A |
11.
[Maximum mark: 1]
22N.1A.SL.TZ0.11
Which structure of CF2Cl2 is shown with correct bond and molecular dipoles?
[1]
Markscheme
D
Examiners report
41% of candidates were able to deduce the bond polarity and molecular polarity correctly. The most commonly chosen distractor was A which had the correct bond polarities but did not include an overall dipole.
Syllabus sections
Structure 2. Models of bonding and structure » Structure 2.2—The covalent model » Structure 2.2.4—The valence shell electron pair repulsion (VSEPR) model enables the shapes of molecules to be predicted from the repulsion of electron domains around a central atom. Predict the electron domain geometry and the molecular geometry for species with up to four electron domains.