The table shows the voltage of three cells. Each cell contains metal P as one electrode and one other metal as the second electrode, in the same electrolyte. Metal P is the least reactive of the four metals. What is the voltage of a cell made from a metal Q electrode and a metal S electrode in the same electrolyte?
Table: The voltage produced by three cells, each containing a metal P electrode and one other metal electrode
| Metal used as the second electrode | Voltage in V |
|---|---|
| Q | 0.34 |
| R | 1.10 |
| S | 1.56 |
0.46 V0.46\ \text{V}0.46 V
1.22 V1.22\ \text{V}1.22 V
1.90 V1.90\ \text{V}1.90 V
2.66 V2.66\ \text{V}2.66 V
40 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.