on the basis of electronic concept. check the reaction is oxidation or reduction . a Na = Na+ + 1e-
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Oxidation is the loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule.
Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of certain atoms in a molecule
in this given reaction (O+2e
−
→O
−2
), there is the gain of electrons thus, this is reduction reaction.
Explanation:
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