Question 7
FThe figure shows the arrangement of atoms in a pure metal and in an alloy of that metal.
Figure: The arrangement of atoms in a pure metal and in an alloy, shown as two labelled diagrams
a.[2]
Which diagram, 1 or 2, shows the alloy?
Give a reason for your answer.
b.[2]
Explain why the alloy is harder than the pure metal.
c.[1]
Give one reason why a manufacturer might choose the pure metal rather than the alloy.
10.3 Using materials Questions
40 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.