Question

$\mathrm{Fe_2O_3 + 2Al \rightarrow Al_2O_3 + 2Fe$ is which of the following types reaction?}

• A. Combination
• B. Decomposition
• C. Displacement
• D. Double displacement

Hint:

In single displacement: $A + BC \rightarrow AC + B$.

Answer 1

The Correct Option is C

Step 1: Identify the change.
Aluminium replaces iron from iron(III) oxide to form aluminium oxide and iron.
Step 2: Type.
Replacement of one element by another is a \emph{single displacement} reaction (Thermite reaction).