A student concludes that metal X is more reactive than metal Y.
Each test uses the same mass and particle size of metal, and the same volume and concentration of solution.
Which result does not support the student's conclusion?
Y displaces X from a solution of X sulfate.
X displaces Y from a solution of Y sulfate.
X gives a larger temperature rise than Y with the same acid.
X makes bubbles of hydrogen faster than Y with the same acid.
60 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.