Question

on the basis of electronic concept. check the reaction is oxidation or reduction . a Na = Na+ + 1e-​

Answer 1

Answer:

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: