what is the electronic concept of redox recation
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a reaction in which there loss and gain of electrons
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The reaction in which there is loss and gain of oxgyen , hydrogen .
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According to the electronic concept, a reaction in which loss of electrons from an atom or an ion takes place is called oxidation.
Consider reaction, 2Mg + O2 → 2MgO
In this reaction, the valency of magnesium is increased’ from zero (in the atomic state) to + 2 (in MgO).
i.e. Mg0 → Mg2+ + 2 e–
In this reaction, magnesium is losing electrons. And hence oxidation of magnesium takes place.