Linked from
The 203 pages that link to Redox, each with the reason it gives.
Neil BartlettNarrower topic: The discovery depended on platinum hexafluoride oxidizing xenon.
HypochloriteNarrower topic: Hypochlorite oxidizes many substances while chlorine is reduced.
Iron(III)Narrower topic: Iron(III) compounds gain or lose electrons through redox reactions.
CystineNarrower topic: Cystine formation oxidizes cysteine, while bond reduction restores it.