DP Chemistry (last assessment 2024)

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Question 22M.1.hl.TZ1.20

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1.hl.TZ1.20
Level hl Paper 1 Time zone TZ1
Command term Determine Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
22M.1.hl.TZ1.20

The table shows data for the hydrolysis of a halogenoalkane, RCl.

Which statements are correct?

I.   The reaction is first order with respect to RCl.
II.  The reaction is second order overall.
III. The reaction proceeds by an SN2 mechanism.


A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

D

Examiners report

Average performance on a high discriminatory question on rate of reaction and mechanism question, with no clear misconception based on the other choices.

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