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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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