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Question 17N.1.hl.TZ0.10

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.hl.TZ0.10
Level hl Paper 1 Time zone TZ0
Command term Question number 10 Adapted from N/A
10.
[Maximum mark: 1]
17N.1.hl.TZ0.10

[CoCl6]3– is orange while [Co(NH3)6]3+ is yellow. Which statement is correct?

A. [CoCl6]3– absorbs orange light.

B. The oxidation state of cobalt is different in each complex.

C. The different colours are due to the different charges on the complex.

D. The different ligands cause different splitting in the 3d orbitals.

[1]

Markscheme

D

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