| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.hl.TZ1.23 |
| Level | HL | Paper | 1 | Time zone | TZ1 |
| Command term | State | Question number | 23 | Adapted from | N/A |
Question
Which step is the rate-determining step of a reaction?
A. The step with the lowest activation energy
B. The final step
C. The step with the highest activation energy
D. The first step
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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