DP Chemistry (last assessment 2024)

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Question 19N.2.hl.TZ0.6f(ii)

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.2.hl.TZ0.6f(ii)
Level hl Paper 2 Time zone TZ0
Command term Deduce Question number f(ii) Adapted from N/A
f(ii).
[Maximum mark: 1]
19N.2.hl.TZ0.6f(ii)

Copper forms two chlorides, copper(I) chloride and copper(II) chloride.

Dilute copper(II) chloride solution is light blue, while copper(I) chloride solution is colourless.

(f(ii))

Deduce why the Cu(I) solution is colourless.

[1]

Markscheme

full «3»d sub-level/orbitals
OR
no d–d transition possible «and therefore no colour» ✔

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