What Are the Oxidation Numbers of the Atoms in the Cr₂O₇²⁻

question 35

Multiple Choice

What are the oxidation numbers of the atoms in the Cr₂O₇²⁻ ion?

• A)Cr = 1-, O = 0
• B)Cr = 0, O = 2-
• C)Cr = 6+, O = 2-
• D)Cr = 7+, O = 2-
• E)Cr = 3+, O = 1-

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