DP Chemistry (last assessment 2024)

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Question 22N.2.hl.TZ0.2e.ii

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.2.hl.TZ0.2e.ii
Level hl Paper 2 Time zone TZ0
Command term State Question number e.ii Adapted from N/A
e.ii.
[Maximum mark: 1]
22N.2.hl.TZ0.2e.ii

Chloroquine is a medication used to prevent and treat malaria.

Chloroquine can be synthesized by reacting 4,7-dichloroquinoline with another reactant, B.

            4,7-dichloroquinoline                                                            chloroquine

(e.ii)

This reaction can be done with a copper catalyst. State the ground-state electron configuration for copper.

[1]

Markscheme

1s22s22p63s23p64s13d10 / 1s22s22p63s23p63d104s1

OR

[Ar]4s13d10 / [Ar]3d104s1 ✔

Examiners report

Most students were aware that copper is one of the transition elements that does not have a full 4s level and gave the correct electron configuration.

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