![]() ![]() On the other hand, when an atom accepts electrons, it’s negative oxidation number increases, which means oxidation number of the atom decreases in respect of zero reference. As the oxidation number increases, this part of the reaction is referred as oxidation reaction. Here in our example the oxidation number of zinc becomes + 2 from 0. In this reaction as the zinc gives up electrons, it is oxidised and the chlorine accepts electrons, hence it is reduced.Īs when an atom gives up electron, its oxidation number increases. Now, these two oppositely charged ions combine together to form, zinc chloride (ZnCl 2) ![]() Here, each chlorine atom accepts one electrons and becomes negative ion. In the above reaction zinc (Zn) first gives up two electrons and becomes positive ions. Let us consider the reaction between zinc metal and chlorine. ![]() Because, battery are discharged or charged due to oxidation and reduction reactions.įor understanding the theory of oxidation and reduction, we can directly go to an example of chemical reaction. charging and discharging of battery, we will first try to understand what is oxidation and reduction. Before going in detail of this subject i.e. ![]()
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