A student adds 1.0 g of four different metal powders, P, Q, R and S, to separate 25 cm325\,\mathrm{cm^{3}}25cm3 samples of copper sulfate solution.
The table shows the temperature rise for each metal.
| Metal | Temperature rise (∘C^\circ\mathrm{C}∘C) |
|---|---|
| P | 7.5 |
| Q | 0.0 |
| R | 15.0 |
| S | 2.5 |
What is the order of reactivity of the metals, from most reactive to least reactive?
Q, S, P, R
P, R, S, Q
R, P, S, Q
R, S, P, Q
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.