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 1

Answer: (D)

displacement reaction.

Answer 2

The given reaction is an example of a displacement reaction.
A displacement reaction is one wherein the atom or a set of atoms is displaced by another atom in a molecule.

In the reaction

Due to its higher reactivity compared to iron, aluminum displaces iron, leading to the formation of aluminum oxide.
Therefore, option D is the correct choice.

Explanation for the incorrect answer:
Option (A) suggests a combination reaction. In a combination reaction, two or more elements or compounds (reactants) join together to create a single compound (product).
Hence option (A) is incorrect.

Option (B) Double displacement reaction. In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
Hence option (B) is incorrect.

Option (C) corresponds to a decomposition reaction. Decomposition reactions involve the breakdown of chemical species into simpler components.
Hence option (C) is incorrect.

Therefore Option (D) is the correct answer.