In Which of the Following Pairs Is the Oxidation Number

question 41

Multiple Choice

In which of the following pairs is the oxidation number for the underlined element INCORRECT?

• A) ClO₄^-/(+7)
• B) S₂O₃^2-/+2
• C) Fe₂O₃/+3
• D) HCO₃^-/+3
• E) CO₂/+4

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