If a piece of aluminium is added to iron(II) sulphate (FeSO4) solution, what will happen?
Iron will get deposited.
This is a displacement reaction. In the reactivity (activity) series of metals, aluminium lies above iron, meaning aluminium is more reactive than iron. A more reactive metal can displace a less reactive metal from its salt solution.
So aluminium displaces iron from iron(II) sulphate: \(2Al + 3FeSO_4 \rightarrow Al_2(SO_4)_3 + 3Fe\). The displaced iron settles out as a solid deposit, while aluminium goes into solution as aluminium sulphate.
Therefore, iron will get deposited.
Aluminium will not get deposited; it is the metal that dissolves into the solution, not the one that comes out. A blue solution is characteristic of copper(II) salts, not iron(II) sulphate, which is pale green. "No reaction" is incorrect because aluminium is more reactive than iron, so a displacement reaction does occur.
Similar Questions
Balance the following reaction:
\(3\,\text{MnO}_2\,(s) + x\,\text{Al}\,(s) \rightarrow 3\,\text{Mn}\,(l) + y\,\text{Al}_2\text{O}_3\,(s) + \text{Heat}\)
What is the primary chemistry behind a displacement reaction?
What type of ions exchange between reactants in a double displacement reaction?
Important Questions from Chemical Reaction
An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions?
Copper sulphate crystals available in the market are blue coloured crystals. By careful heating, they turn to white colour. Which one of the following is responsible for the blue colour?
Airbags work on the principle of a chemical reaction triggered by the impact producing a gaseous product that causes a sudden volume change. Which one among the following chemical conversions is responsible for this?
Which one of the following is the correct reactivity series with water?
Silver artefacts get tarnished in air due to the formation of
