Vegetable oil reacts with hydrogen to form hydrogenated oil used in the manufacture of margarine. The reaction takes less time when nickel powder is present. The nickel powder is recovered after the reaction with no change in mass.
Which substance acted as the catalyst?
Vegetable oil
Hydrogenated oil
Nickel powder
Hydrogen gas
91 exam-style questions on AQA GCSE Chemistry 1.3 Properties of transition metals, covering 1.3.1 Comparison with Group 1 elements and 1.3.2 Typical properties of transition metals. Each one has a worked solution and a mark scheme showing where the marks go.