What Are the Commonly Observed Oxidation States of Cobalt Found

question 10

Multiple Choice

What are the commonly observed oxidation states of cobalt found in the various forms of vitamin B₁₂?

• A)+1, +2, +3
• B)+1, +3, +5
• C)+2, +3, +5
• D)+3, +4, +5
• E)+3, +5, +6

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