A student makes chemical cells from pairs of metals. The same electrolyte and conditions are used each time.
| Metals used | Voltage / V |
|---|---|
| magnesium and copper | 2.0 |
| magnesium and zinc | 0.9 |
| zinc and copper | 1.1 |
| metal X and copper | 0.5 |
Metal X is more reactive than copper. What is the most likely voltage of a cell made from magnesium and metal X?
0.6 V0.6\,\mathrm{V}0.6V
1.5 V1.5\,\mathrm{V}1.5V
2.0 V2.0\,\mathrm{V}2.0V
2.5 V2.5\,\mathrm{V}2.5V
42 exam-style questions on Edexcel GCSE Chemistry 6.4 Chemical cells and fuel cells, covering 6.4.1 Chemical cells and fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.