A student tests three metals, R, S and T.
| Metal | Cold water | Dilute hydrochloric acid |
|---|---|---|
| R | reacts to form an alkaline solution | reacts |
| S | no reaction | reacts |
| T | no reaction | no reaction |
Statement 1: R has the greatest tendency to form positive ions.
Statement 2: T could be copper.
Statement 3: S would displace T from a solution of a salt of T.
Statement 4: T would displace S from a solution of a salt of S.
Which statements are correct?
1 and 2 only
2 and 3 only
1, 2 and 4 only
1, 2 and 3 only
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.