Chemistrymedium · Past Paper
In the reaction $3MnO_2 + 4Al \rightarrow 3Mn + 2Al_2O_3$, which substance is being reduced?
AAl
BMnO2
CMn
DAl2O3
✓ Correct Answer: B — MnO2
MnO2 loses oxygen to become Mn, which is a reduction process.
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