The rate of corrosion of iron and its alloys can be significantly affected by environmental factors such as salinity.
Describe a simple laboratory experiment to compare how much a mild steel bolt corrodes in a 3% sodium chloride (salt) solution compared to pure deionised water.
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.