---
title: "A student analyzes a vanadium-containing battery-recycling solution by reacting the vanadium species with permanganate in acidic solution. The net ionic equation for the reaction is  \\[ \\text{MnO}_4^-\\text{(aq)}+5\\text{VO}^{2+}\\text{(aq)}+\\text{H}_2\\text{O(l)}\\rightarrow \\text{Mn}^{2+}\\text{(aq)}+5\\text{VO}_2^+\\text{(aq)}+2\\text{H}^+\\text{(aq)} \\]  Which choice correctly identifies the reducing agent and the oxidation-state change of its transition-metal atom?"
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url: "https://nerd-notes.com/ubq/120116/"
date_modified: "2026-08-21T08:41:48+00:00"
---

# A student analyzes a vanadium-containing battery-recycling solution by reacting the vanadium species with permanganate in acidic solution. The net ionic equation for the reaction is

\[
\text{MnO}_4^-\text{(aq)}+5\text{VO}^{2+}\text{(aq)}+\text{H}_2\text{O(l)}\rightarrow \text{Mn}^{2+}\text{(aq)}+5\text{VO}_2^+\text{(aq)}+2\text{H}^+\text{(aq)}
\]

Which choice correctly identifies the reducing agent and the oxidation-state change of its transition-metal atom?

A student analyzes a vanadium-containing battery-recycling solution by reacting the vanadium species with permanganate in acidic solution. The net ionic equation for the reaction is

\[
\text{MnO}_4^-\text{(aq)}+5\text{VO}^{2+}\text{(aq)}+\text{H}_2\text{O(l)}\rightarrow \text{Mn}^{2+}\text{(aq)}+5\text{VO}_2^+\text{(aq)}+2\text{H}^+\text{(aq)}
\]

Which choice correctly identifies the reducing agent and the oxidation-state change of its transition-metal atom?

- **A.** Reducing agent: \(\text{VO}^{2+}\text{(aq)}\); oxidation-state change: \(+4\rightarrow +5\)
- **B.** Reducing agent: \(\text{VO}^{2+}\text{(aq)}\); oxidation-state change: \(+2\rightarrow +1\)
- **C.** Reducing agent: \(\text{MnO}_4^-\text{(aq)}\); oxidation-state change: \(+7\rightarrow +2\)
- **D.** Reducing agent: \(\text{VO}_2^+\text{(aq)}\); oxidation-state change: \(+5\rightarrow +4\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120116/*