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Explain the following in terms of gain o...

Explain the following in terms of gain or loss of oxygen with two examples each.
(a) Oxidation
(b) Reduction

Text Solution

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Oxidation Reaction : It is a chemical reaction in which gain of oxygen or loss of hydrogen takes place
(i) `2Mg(s)+O_(2)(g) overset("Heat")(rarr)2MgO(s)`
Here, Magnesium is oxidised to become Magnesium Oxide
(ii) `2Cu(s)+O_(2)(g) overset("Heat")(rarr)2CuO(s)`
Here, Copper is oxidised to become Copper Oxide
Reduction Reaction : It is a chemical reaction in which loss of oxygen or gain of hydrogen takes place
(i) `CuO + H_(2) overset("Heat")(rarr) Cu+H_(2)O`
Here, Copper Oxide is reduced to become Copper
(ii) `ZnO+C overset("Heat")(rarr) Zn+CO`
Here, Zinc Oxide is reduced to become Zinc.
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