| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.hl.TZ1.13 |
| Level | HL | Paper | 1 | Time zone | TZ1 |
| Command term | Identify | Question number | 13 | Adapted from | N/A |
Question
Which structure has delocalized \(\pi \) electrons?
A. \({{\text{O}}_{\text{3}}}\)
B. CO
C. HCN
D. \({\text{C}}{{\text{O}}_{\text{2}}}\)
Markscheme
A
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 14: Chemical bonding and structure » 14.1 Covalent bonding and electron domain and molecular geometries
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