In the reaction PbS(s) + O2(g) → SO2(g) + PbO2(s), which species is the oxidizing agent?

Prepare for the Electrochemistry Test with our extensive quiz. Utilize flashcards and multiple-choice questions with detailed hints and explanations to excel in your exam!

Multiple Choice

In the reaction PbS(s) + O2(g) → SO2(g) + PbO2(s), which species is the oxidizing agent?

Explanation:
The oxidizing agent is the species that gains electrons (is reduced). In this reaction, oxygen gas goes from its elemental state (oxidation state 0) to oxide forms with sulfur and lead, where oxygen is -2 in both products. That gain of electrons shows oxygen is reduced, so it acts as the oxidizing agent. The species PbS donates electrons (Pb from +2 to +4 and S from -2 to +4), so PbS is the reducing agent.

The oxidizing agent is the species that gains electrons (is reduced). In this reaction, oxygen gas goes from its elemental state (oxidation state 0) to oxide forms with sulfur and lead, where oxygen is -2 in both products. That gain of electrons shows oxygen is reduced, so it acts as the oxidizing agent. The species PbS donates electrons (Pb from +2 to +4 and S from -2 to +4), so PbS is the reducing agent.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy