A technician compares three metals from Group 1, labelled R, S and T. Each metal is added separately to cold water. The observations are shown in the table.
| Metal | Observation |
|---|---|
| R | Fizzes steadily and remains solid |
| S | Melts into a ball and fizzes rapidly |
| T | Fizzes very vigorously and the hydrogen catches fire |
State which metal is the most reactive.
A fourth Group 1 metal is below T in the group. Suggest how its reaction with cold water would compare with the reaction of T. Explain your answer.
113 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.