A student adds four metals to solutions of their sulfates.
The table shows the student's results.
| Metal | Magnesium sulfate | Zinc sulfate | Iron sulfate | Copper sulfate |
|---|---|---|---|---|
| Magnesium | – | reaction | reaction | reaction |
| Zinc | no reaction | – | no reaction | reaction |
| Iron | no reaction | no reaction | – | reaction |
| Copper | no reaction | no reaction | no reaction | – |
One of the results is wrong.
Use your knowledge of the reactivity series.
Which result is most likely to be wrong?
Magnesium with zinc sulfate
Zinc with iron sulfate
Iron with copper sulfate
Copper with magnesium sulfate
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.