Oxidation States
Chlorine can assume oxidation states of −1, +1, +3, +5, or +7 within the corresponding anions Cl−, ClO−, ClO2−, ClO3−, or ClO4−, known commonly and respectively as chloride, hypochlorite, chlorite, chlorate, and perchlorate. An additional oxidation state of +4 is seen in the neutral compound chlorine dioxide ClO2, which has a similar structure to chlorite ClO2− (oxidation state +3) and the cation chloryl (ClO2+) (oxidation state +5).
| oxidation state | −1 | +1 | +3 | +5 | +7 |
|---|---|---|---|---|---|
| anion named | chloride | hypochlorite | chlorite | chlorate | perchlorate |
| formula | Cl- | ClO− | ClO2− | ClO3− | ClO4− |
| structure |
Read more about this topic: Chlorite
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