In the Complex Ion [Cr(C₂O₄)₂(H₂O)₂]^-, the Oxidation Number of Cr

question 79

Multiple Choice

In the complex ion [Cr(C₂O₄) ₂(H₂O) ₂]^-, the oxidation number of Cr is

• A) +1.
• B) +2.
• C) +3.
• D) -2.
• E) -1.

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