In the chemical reaction ZnO + C --> Zn + CO, ZnO is getting _____ and carbon is getting _____.
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A.
oxidised, oxidised
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B.
reduced; reduced
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C.
reduced; decomposed
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D.
reduced; oxidised
Correct Answer:
D. reduced; oxidised
Explanation:
In the chemical reaction ZnO + C -> Zn + CO, zinc oxide (ZnO) loses oxygen to become metallic zinc, which is a process known as reduction. Simultaneously, carbon (C) gains oxygen to form carbon monoxide (CO), which is defined as oxidation. Since ZnO provides the oxygen for the carbon, it acts as the oxidizing agent while being reduced itself, and carbon acts as the reducing agent while being oxidized. Therefore, the correct description is that ZnO is reduced and carbon is oxidized.
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