| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.hl.TZ2.20 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | Apply | Question number | 20 | Adapted from | N/A |
Question
When X reacts with Y to give Z, the following graph is plotted. What can be deduced from the graph?
A. The concentration of X is directly proportional to time.
B. The reaction is first order overall.
C. The reaction is zero order with respect to X.
D. The reaction is first order with respect to X.
Markscheme
C
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 16: Chemical kinetics » 16.1 Rate expression and reaction mechanism
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