DP Chemistry (first assessment 2025)

Test builder »

Question 19N.1A.HL.TZ0.8

Date	November 2019	Marks available	[Maximum mark: 1]	Reference code	19N.1A.HL.TZ0.8
Level	HL	Paper	1A	Time zone	TZ0
Command term	Determine	Question number	8	Adapted from	N/A

8.

[Maximum mark: 1]

19N.1A.HL.TZ0.8

What is the effect of a stronger ligand?

[1]

Markscheme

A

Syllabus sections

Structure 3. Classification of matter » Structure 3.1—The periodic table: Classification of elements » Structure 3.1.10—Transition element complexes are coloured due to the absorption of light when an electron is promoted between the orbitals in the split d-sublevels. The colour absorbed is complementary to the colour observed. Apply the colour wheel to deduce the wavelengths and frequencies of light absorbed and/or observed.