In this redox reaction, which is the reducing agent? MnO sub 2 times s plus 4 cap h raised to the plus A q power plus 2 Cl raised to the negative A q power rightarrow Mn raised to the 2 plus power times A q plus 2 cap h sub 2 cap o l plus Cl sub 2 times g
Answer
A
MnO sub 2
B
Cl raised to the negative power
C
Mn raised to the 2 plus power
D
Cl sub 2
Explanation
The reducing agent is the substance that is oxidized—it loses electrons. Chloride ions, Cl⁻, become Cl₂, so chlorine’s oxidation number rises from −1 to 0. Therefore, Cl⁻ is the reducing agent.
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