A student investigates the reactivity of four metals, J, K, L and M.
The table shows the results of three tests.
| Metal added | Solution | Observation |
|---|---|---|
| K | J sulfate solution | no change |
| K | L sulfate solution | a coating of L forms on K |
| M | L sulfate solution | no change |
What is the order of reactivity of the metals, from most reactive to least reactive?
K, L, M, J
K, J, L, M
M, L, K, J
J, K, L, M
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.