---
title: "A student analyzes the vanadium content in an ore sample using a redox titration. In an acidic solution, the reaction between oxovanadium(IV) ions and permanganate ions proceeds according to the balanced equation below:  \\[ 5\\,\\text{VO}^{2+}\\text{(aq)} + \\text{MnO}_4^-\\text{(aq)} + \\text{H}_2\\text{O(l)} \\rightarrow 5\\,\\text{VO}_2^+\\text{(aq)} + \\text{Mn}^{2+}\\text{(aq)} + 2\\,\\text{H}^+\\text{(aq)} \\]  Which of the following correctly identifies the oxidizing agent and describes the change in the oxidation state of the transition metal atom in that agent?"
description: "## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please […]"
url: "https://nerd-notes.com/ubq/119757/"
date_modified: "2026-08-21T08:12:13+00:00"
---

# A student analyzes the vanadium content in an ore sample using a redox titration. In an acidic solution, the reaction between oxovanadium(IV) ions and permanganate ions proceeds according to the balanced equation below:

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

Which of the following correctly identifies the oxidizing agent and describes the change in the oxidation state of the transition metal atom in that agent?

A student analyzes the vanadium content in an ore sample using a redox titration. In an acidic solution, the reaction between oxovanadium(IV) ions and permanganate ions proceeds according to the balanced equation below:

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

Which of the following correctly identifies the oxidizing agent and describes the change in the oxidation state of the transition metal atom in that agent?

- **A.** \(\text{MnO}_4^-\text{(aq)}\), in which the oxidation state of \(\text{Mn}\) decreases from \(+8\) to \(+2\)
- **B.** \(\text{MnO}_4^-\text{(aq)}\), in which the oxidation state of \(\text{Mn}\) decreases from \(+7\) to \(+2\)
- **C.** \(\text{VO}^{2+}\text{(aq)}\), in which the oxidation state of \(\text{V}\) increases from \(+2\) to \(+5\)
- **D.** \(\text{VO}^{2+}\text{(aq)}\), in which the oxidation state of \(\text{V}\) increases from \(+4\) to \(+5\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119757/*