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REDOX REACTIONS AND ELECTROCHEMISTRY
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In the reaction Cr₂O₃(s) + 2Al(s) → Al₂O₃(s) + 2Cr(s), what is the role of aluminum?
A. Aluminum acts as an oxidizing agent.
B. Aluminum is neither oxidized nor reduced.
C. Aluminum acts as a catalyst.
D. Aluminum acts as a reducing agent.
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