DP Chemistry (first assessment 2025)
Question 22N.1A.SL.TZ0.2
| Date | November 2022 | Marks available | [Maximum mark: 1] | Reference code | 22N.1A.SL.TZ0.2 |
| Level | SL | Paper | 1A | Time zone | TZ0 |
| Command term | State | Question number | 2 | Adapted from | N/A |
2.
[Maximum mark: 1]
22N.1A.SL.TZ0.2
What is the change of state for a gas to a solid?
A. Condensation
B. Deposition
C. Freezing
D. Sublimation
[1]
Markscheme
B
Examiners report
52% of the candidates identified "deposition" as the change of state for a gas to a solid. The most commonly chosen distractor was sublimation.
Syllabus sections
Structure 1. Models of the particulate nature of matter » Structure 1.1—Introduction to the particulate nature of matter » Structure 1.1.2—Kinetic molecular theory. The kinetic molecular theory is a model to explain physical properties of matter (solids, liquids and gases) and changes of state. Distinguish the different states of matter. Use state symbols (s, , g and aq) in chemical equations.