Home › NY Regents Chemistry › Chemistry › Electrochemistry › Iron(II) is converted to iron(III) during a redo…
Iron(II) is converted to iron(III) during a redox reaction. What role does the iron(II) play?
AIt is the oxidizing agent
BIt is a spectator ion
CIt is the inert electrode
DIt is the reducing agent
Answer & Solution
Correct answer: D. It is the reducing agent
1. Going from a 2+ charge to a 3+ charge means one electron has been given away.
2. Giving electrons away is oxidation, so the iron(II) is oxidized.
3. The electrons it releases go on to reduce something else in the reaction.
4. A species that causes reduction elsewhere is the reducing agent.
5. The oxidizing agent is the species being reduced, which is a different species here.
_Source: OpenStax Chemistry (CC BY 4.0), Chs 7 and 17, section 17.1 Balancing Oxidation-Reduction Reactions_
Related questions
Reducing chromium(III) to chromium metal requires how many moles of electrons per mole of Electrolysing neutral aqueous sodium chloride reduces water rather than hydrogen ion becauTo drive a nonspontaneous cell reaction, the applied voltage must be:A sacrificial anode protects iron because the anode metal has a reduction potential that iRust differs from copper patina in that the rust layer:A protective oxide layer that stops further corrosion is formed by a process called:The blue-green patina on outdoor copper structures forms because copper oxides react with:Compared with an internal combustion engine, a fuel cell using the same reaction is typica