An engineer compares the composition of two nickel-based alloys to see how their resistance to high-temperature chemical corrosion differs.
| Element | Percentage of element in nickel alloy with low corrosion resistance (%) | Percentage of element in nickel alloy with high corrosion resistance (%) |
|---|---|---|
| Nickel | 74.5 | 58.2 |
| Iron | 15.0 | 14.8 |
| Molybdenum | 0.0 | 16.5 |
| Manganese | 10.5 | 10.5 |
Using the table, state which metal is added to nickel to increase its corrosion resistance.
97 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.