| Date | May 2013 | Marks available | 1 | Reference code | 13M.3.sl.TZ1.C1 |
| Level | SL | Paper | 3 | Time zone | TZ1 |
| Command term | State | Question number | C1 | Adapted from | N/A |
Question
Aluminium is the most abundant metal on Earth and its alloys are widely used.
Describe what is meant by the term alloy.
[1]
b.
State the main improvement made to the properties of aluminium when it is alloyed.
[1]
c.
Markscheme
homogeneous mixture of metals/metal(s) and non-metal(s);
b.
increase in aluminium’s strength;
c.
Examiners report
Most candidates did not gain the mark for alloys in part (b) because they did not state that the mixture was homogeneous which was needed for the mark.
b.
The majority of candidates knew that alloying aluminium increased its strength in part (c).
c.
