| Date | May 2012 | Marks available | 1 | Reference code | 12M.1.hl.TZ2.8 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 8 | Adapted from | N/A |
Question
Which complex is colourless in solution?
A. \({\text{[Fe(}}{{\text{H}}_2}{\text{O}}{{\text{)}}_6}{\text{]C}}{{\text{l}}_2}\)
B. \({\text{[Ni(N}}{{\text{H}}_3}{{\text{)}}_6}{\text{]C}}{{\text{l}}_2}\)
C. \({\text{[Zn(}}{{\text{H}}_2}{\text{O}}{{\text{)}}_6}{\text{](N}}{{\text{O}}_3}{{\text{)}}_2}\)
D. \({{\text{K}}_3}[{\text{Co(CN}}{{\text{)}}_6}]\)
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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