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Question:

Fe₂O₃ + 2Al → Al₂O₃ + 2Fe. The above reaction is an example of a:

combination reaction

double displacement reaction

decomposition reaction

displacement reaction

Solution:

Correct option is D. displacement reaction
Fe₂O₃ + 2Al → Al₂O₃ + 2Fe
It's a (single) displacement reaction. The more active aluminum replaces the iron in the iron oxide to form aluminum oxide and free iron.