Four metals, J, K, L and M, were added to solutions of the nitrates of the other three metals. The table shows the results.
Table: Results of adding four metals to solutions of the nitrates of the other three metals
| Metal added | J nitrate solution | K nitrate solution | L nitrate solution | M nitrate solution |
|---|---|---|---|---|
| J | not done | reaction | reaction | no reaction |
| K | no reaction | not done | no reaction | no reaction |
| L | no reaction | reaction | not done | no reaction |
| M | reaction | reaction | reaction | not done |
Which row shows the metals in order of reactivity, starting with the most reactive?
J, M, L, K
K, L, J, M
M, J, L, K
M, L, J, K
86 exam-style questions on AQA GCSE Chemistry 4.1 Reactivity of metals, covering 4.1.1 Metal oxides, 4.1.2 The reactivity series, 4.1.3 Extraction of metals and reduction, and 4.1.4 Oxidation and reduction in terms of electrons. Each one has a worked solution and a mark scheme showing where the marks go.