DP Chemistry (last assessment 2024)

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Question 21M.1.hl.TZ1.20

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.hl.TZ1.20
Level hl Paper 1 Time zone TZ1
Command term Deduce Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
21M.1.hl.TZ1.20

A reaction proceeds by the following mechanism:

step 1: A+A→B
step 2: B+C→D

Which rate equation is consistent with this mechanism?

A.  Rate = k[B]2[C]

B.  Rate = k[A]2[B][C]

C.  Rate = k[A]2

D.  Rate = k[A][C]

[1]

Markscheme

C

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