| Date | November 2009 | Marks available | 1 | Reference code | 09N.1.hl.TZ0.9 |
| Level | HL | Paper | 1 | Time zone | TZ0 |
| Command term | Identify | Question number | 9 | Adapted from | N/A |
Question
Which process is responsible for the colour of a transition metal complex?
A. The absorption of light when electrons move between s orbitals and d orbitals
B. The emission of light when electrons move between s orbitals and d orbitals
C. The absorption of light when electrons move between different d orbitals
D. The emission of light when electrons move between different d orbitals
Markscheme
C
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 13: The periodic table—the transition metals » 13.2 Coloured complexes
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