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Question
Identify in the following reaction (a) the substance oxidised, and (b) the substance reduced:
\[\ce{ZnO + C -> Zn + CO}\]
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Solution
- The substance oxidised in the reaction is Carbon (C). Carbon gains oxygen to transform into carbon monoxide. The oxidation state of carbon increases from 0 to +2 in CO.
- The substance reduced is Zinc oxide (ZnO). Zinc oxide loses oxygen to form metallic zinc (Zn). The oxidation state of zinc decreases from +2 in ZnO to 0 in Zn.
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