CH-664
Reactivity series
Chemistry · Secondary 3 · Hard · Reactivity series
Copper metal can be extracted from an aqueous solution of copper(II) sulfate using scrap iron. Which statement explains why iron can displace copper from the solution?
- Iron is more reactive than copper and can displace it from its solution.
- Iron is less dense than copper and floats on the solution.
- Copper is more reactive than iron and is displaced by it.
- Iron and copper have the same reactivity so they exchange places easily.
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