Displacement reactions involving metal oxides
2 marks · NormalThe diagram below shows four metals (A, B, C, D) and the results of their reactions with the oxides of the others. If a metal reacts with the oxide of another metal, a tick (✓) is shown.
| Reactant Metal | Reacts with oxide of A | Reacts with oxide of B | Reacts with oxide of C | Reacts with oxide of D |
|---|---|---|---|---|
| A | – | ✓ | ✓ | ✓ |
| B | – | – | ✓ | ✓ |
| C | – | – | – | ✓ |
| D | – | – | – | – |
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
A > B > C > D
Also accept: A is most reactive and D is least reactive; Order from most to least reactive: A, B, C, D
Common mistakes: Reversing the order; Listing D as most reactive
Show mark scheme and worked solution
Marking points
M1 · 1 mark · Identifies that a metal that reacts with more oxides is more reactive.
A1 · 1 mark · Writes the correct order: A > B > C > D (most to least reactive).
Worked solution
Metal A reacts with B, C, D's oxides, so A is the most reactive. B reacts with C and D's oxides only, so B is next. C only reacts with D's oxide, and D reacts with none. So the correct order is: