Edexcel IAL Chemistry AS 8.5 Oxidation and reduction
Edexcel IAL Chemistry AS 8.5 Oxidation and reduction
Label the relevant oxidation states before and after reaction, then state that an increase is oxidation and a decrease is reduction while naming both elements.
How this is tested
- Assign before-and-after oxidation numbers to prove that a reaction is redox.
- Name the oxidised and reduced elements from increases and decreases in oxidation number.
- Connect electron loss or gain to the corresponding oxidation-number change.