Chemistrymedium · Past Paper
In the reaction $MnO_2 + 4HCl \rightarrow MnCl_2 + 2H_2O + Cl_2$, which substance is oxidized?
AMnO2
BHCl
CMnCl2
DCl2
✓ Correct Answer: B — HCl
HCl loses hydrogen (or the Cl- ion loses electrons) to form Cl2, so HCl is oxidized.
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