| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.sl.TZ1.13 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | State | Question number | 13 | Adapted from | N/A |
Question
Which particles are responsible for electrical conductivity in metals?
A. Anions
B. Cations
C. Electrons
D. Protons
Markscheme
C
Examiners report
One G2 comment stated that the terms cation and anion are not stated on the syllabus. Although strictly correct, it would be assumed that these terms would be introduced to students in the classroom as they are universally used in chemistry (e.g. even the term carbocation is widely used in explaining certain nucleophilic substitution reaction mechanisms).
Syllabus sections
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