Active Metals Often React with Oxygen in Air to Form

question 62

Multiple Choice

Active metals often react with oxygen in air to form a protective surface film that prevents further reaction.Which one of the following formulas for a metal-oxygen combination is NOT correct?

• A)Al₂O₃
• B)Fe₂O₃
• C)Na₂O
• D)MgO₂
• E)MnO

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