Question
Oxidation number of chromium
Answers
GPT-4o mini
The oxidation number (or oxidation state) of chromium can vary depending on the compound it is in. Chromium can exhibit multiple oxidation states, with the most common ones being:
- **+6**: In compounds like chromium trioxide (CrO₃) and potassium dichromate (K₂Cr₂O₇).
- **+3**: In compounds like chromium(III) oxide (Cr₂O₃) and chromium(III) chloride (CrCl₃).
- **+2**: In compounds like chromium(II) oxide (CrO) and chromium(II) sulfate (CrSO₄).
- **0**: In elemental chromium (Cr).
Overall, chromium can have oxidation states ranging from -2 (in some organometallic complexes) to +6. The specific oxidation state is usually determined by the context of the chemical reaction or compound in question.
- **+6**: In compounds like chromium trioxide (CrO₃) and potassium dichromate (K₂Cr₂O₇).
- **+3**: In compounds like chromium(III) oxide (Cr₂O₃) and chromium(III) chloride (CrCl₃).
- **+2**: In compounds like chromium(II) oxide (CrO) and chromium(II) sulfate (CrSO₄).
- **0**: In elemental chromium (Cr).
Overall, chromium can have oxidation states ranging from -2 (in some organometallic complexes) to +6. The specific oxidation state is usually determined by the context of the chemical reaction or compound in question.