Displacement reactions involving metal oxides
2 marks · EasyBased on the list below, which metal is most likely to displace others from their oxides? Assign rank 1 to the most reactive, and rank the rest in descending order.
| Metal |
|---|
| Calcium |
| Copper |
| Aluminium |
| Iron |
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.
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1. Calcium, 2. Aluminium, 3. Iron, 4. Copper
Also accept: Ca > Al > Fe > Cu (with numbers or arrows accepted)
Common mistakes: Reversing order; Mixing up iron and aluminium; Omitting copper as least reactive
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Identifies calcium as most reactive (rank 1)
B2 · 1 mark · Provides correct order for all four metals: calcium, aluminium, iron, copper
Worked solution
The order from most to least reactive is: 1. Calcium 2. Aluminium 3. Iron 4. Copper