DP Chemistry (last assessment 2024)

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Question 22N.2.hl.TZ0.e

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

Consider the following reaction:

Cu2+ (aq) + Fe (s) → Fe2+ (aq) + Cu (s)

Outline the magnetic properties of iron by referring to its electron configuration.

[2]

Markscheme

«iron atoms have 4» unpaired electrons ✔


aligns with a magnetic field/paramagnetic

OR

has a magnetic moment

OR

ferromagnetic ✔

 

For M1 accept diagrams showing unpaired electrons.

Examiners report

Many candidates realised that iron had some unusual magnetic properties (paramagnetic or ferromagnetic). A few correctly correlated these to the presence of unpaired electrons, however quite a number seemed to think they just arose from having partially filled d-orbitals.

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