Chapter 1: Chemical reactions and equations

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Q
Chemical reactions and equations

Question:

Fe2O3 + 2Al → Al2O3 + 2Fe

The above reaction is an example of a:

(a) combination reaction

(b) double displacement reaction

(c) decomposition reaction

(d) displacement reaction

Answer:

Displacement reaction is the type of reaction in which the reactive metal displaces less reactive metal in the solution.

Fe2O3 + 2Al → Al2O3 + 2Fe

In the given chemical reaction, the aluminium is more reactive metal than iron and it displaces iron from the solution to form aluminium oxide.

Therefore, the correct answer is (d) Displacement reaction.

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