| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.hl.TZ2.12 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | State | Question number | 12 | Adapted from | N/A |
Question
Which is the first step in the CFC-catalysed destruction of ozone in UV light?
A. CCl2F2 → CClF2+ + Cl–
B. CCl2F2 → •CClF2 + Cl•
C. CCl2F2 → CCl2F+ + F–
D. CCl2F2 → •CCl2F + F•
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 16: Chemical kinetics » 16.1 Rate expression and reaction mechanism
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