Oxidizing Agent
The species that gains electrons and is reduced.
Practise Acids, Bases & Electrochemistry All Acids, Bases & Electrochemistry topics
The species that gains electrons and is reduced.
Practise Acids, Bases & Electrochemistry All Acids, Bases & Electrochemistry topics
An oxidizing agent is the species that accepts electrons from another substance, and in doing so it is itself reduced. A good oxidizer has a strong tendency to gain electrons, which corresponds to a high positive standard reduction potential. Common strong oxidizers include fluorine, permanganate, dichromate, ozone and hydrogen peroxide. The oxidizing agent is always the reactant that is reduced, so identifying it helps predict the outcome of many reactions. Oxidizing agents are used in disinfection, bleaching and organic synthesis.
Key ideas: The oxidizing agent is the species that gets reduced, accepting electrons from another substance. Strong ones have high positive E: F2, MnO4-, Cr2O7 2-, O3, H2O2, concentrated HNO3. Its oxidation number drops during the reaction. Use the electrochemical series to rank oxidizing power.
Common mistakes and connections: Typical error: naming the species that was oxidized as the oxidizing agent. The agent itself is reduced, and the reagent that is oxidized is the reducing agent. A strong oxidizing agent has a weak conjugate reducing agent. Fire hazards involve oxidizers such as chlorates and permanganates.
Oxidizing power rises with standard reduction potential; fluorine at +2.87 V is the strongest oxidizing agent here and itself is reduced. The interactive lesson shows this as a live animation or chart.
In the reaction of zinc with Cu2+, the Cu2+ ion is the oxidizing agent because it gains electrons and is reduced to copper metal.
The species that gains electrons and is reduced.
Oxidizing Agent is a beginner topic in Acids, Bases & Electrochemistry. It needs no earlier chemistry lessons and is a good starting point.
Study these earlier topics in Acids, Bases & Electrochemistry first: Oxidation, Reduction, Redox Reactions.
The next topics in Acids, Bases & Electrochemistry are Reducing Agent and Disproportionation.
Yes. The interactive lesson includes a self-check question on Oxidizing Agent, and the Acids, Bases & Electrochemistry quiz draws on every topic in this area.
Oxidizing Agent is topic 39 of 105 in Acids, Bases & Electrochemistry.