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What is an oxidation reaction (i) the su...

What is an oxidation reaction (i) the substance oxidised and (ii) the substance reduced:
ZnO+ C `to` Zn + CO

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Oxidation reaction is defined as reaction in which addition of oxygen to a substance or removal of hydrogen from a substance takes place.
(i) The substance oxidised is : Carbon (C )
(ii) The substance reduced is: Zinc oxide(ZnO)
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