| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.hl.TZ2.21 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | State | Question number | 21 | Adapted from | N/A |
Question
Which is correct about reaction mechanisms?
A. A species that is zero order does not take part in the reaction.
B. A catalyst does not take part in the reaction.
C. Reactants in a fast step before the slow step are included in the rate expression.
D. Reactants in a fast step after the slow step are included in the rate expression.
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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