This question is about metals, alloys, and their properties.
The table below shows some physical and chemical properties of three metals.
| Metal | Density (g/cm3\text{g/cm}^3g/cm3) | Relative strength (1=low,10=high1 = \text{low}, 10 = \text{high}1=low,10=high) | Corrosion in outdoor wet environment | Cost per tonne (£££) |
|---|---|---|---|---|
| Metal A | 2.82.82.8 | 666 | Does not corrode | 220022002200 |
| Metal B | 4.54.54.5 | 999 | Does not corrode | 180001800018000 |
| Metal C | 7.27.27.2 | 555 | Corrodes rapidly | 600600600 |
Which metal in the table is the most suitable to make the structural frames of high-speed passenger trains? Explain your answer using information from the table.
Bronze is an alloy of copper. Which metal is mixed with copper to make bronze?
A student investigates the conditions required for iron wool to rust. They set up three test tubes:
Predict which tube will contain rusted iron wool after one week. Explain your answer by referencing the conditions present or absent in each of the three tubes.
State and explain one method used to prevent the iron hull of a marine cargo ship from rusting.
48 exam-style questions on OCR GCSE Chemistry Properties of materials. Each one has a worked solution and a mark scheme showing where the marks go.