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Explain the following in terms of gain or loss of oxygen with two examples each.
(a) Oxidation
(b) Reduction
Asked by Thimma Last Modified
Answer 
(a) oxidation reaction is a reaction in which gain of oxygen or loss of hydrogen takes place.
eg:
2Mg(s)+O(g)→2MgO(s)
oxygen is getting added to Mg. hence Mg is oxidised into MgO
2Cu(s)+O(g)→2CuO(s)
oxygen is getting added to Cu. hence Cu is oxidised into CuO
(b)
reduction reaction is a reaction in which loss of oxygen or gain of hydrogen takes place.
eg:
CuO+H→Cu+H
O
During the reaction oxygen is get removed from CuO, hence reduction of CuO takes place
ZnO+C→Zn+CO
During the reaction oxygen is get removed from ZnO, hence reduction of ZnO takes place
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Shivam Sharma
(a) Oxidation is the gain of oxygen.
For example:
(i) 
(ii) 
In equation (i), H2 is oxidized to H2O and in equation (ii), Cu is oxidised to CuO.
(b) Reduction is the loss of oxygen.
For example:
(i) 
(ii) 
In equation (i), CO2 is reduced to CO and in equation (ii), CuO is reduced to Cu.
read lessRelated Questions
The above reaction is an example of a
(a) combination reaction.
(b) double displacement reaction.
(c) decomposition reaction.
(d) displacement reaction.
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