General Science • ChemistryMedium
What is the oxidation state of chromium in potassium dichromate (K2Cr2O7)?
A. +3
B. +6✓ Correct Answer
C. +4
D. +7
💡 Solution & Explanation
In potassium dichromate, assigning the standard oxidation state of plus one to potassium and minus two to oxygen results in chromium assuming an oxidation state of plus six. Lower oxidation states such as plus three are typical of chromium sesquioxide rather than this strong oxidizing agent.
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