NCERT Question 2

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:

(d) displacement reaction

Explanation:

• Aluminium (Al) displaces iron (Fe) from iron oxide (Fe₂O₃).

• This is a classic displacement reaction, specifically a thermite reaction (used in welding).

• One element (Al) replaces another (Fe) from its compound.