Nickel is used as a catalyst in the industrial hydrogenation of unsaturated vegetable oils to make margarine.
State, in terms of its position in the periodic table, why you would expect nickel to act as a catalyst.
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.