DP Chemistry (last assessment 2024)

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Question 21N.1.hl.TZ0.21

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1.hl.TZ0.21
Level hl Paper 1 Time zone TZ0
Command term Determine Question number 21 Adapted from N/A
21.
[Maximum mark: 1]
21N.1.hl.TZ0.21

The rate equation for a reaction is:

rate = k[A][B]

Which mechanism is consistent with this rate equation?


A.  2A ⇌ I       Fast
     I + B → P    Slow

B.  A + B ⇌ I   Fast
     I + A → P    Slow

C.  A → I          Slow
     I + B → P    Fast

D.  B ⇌ I         Fast
     I + A → P    Slow

[1]

Markscheme

D

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