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Define oxidation in terms of electronic concept.

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Answer: Oxidation is a process in which an atom taking part in chemical reaction loses one or more electrons. Te loss of electrons results in the increase of positive charge ( or ) decrease of negative of the species.Example : Mg → Mg2+ + 2e- ( increase of positive...
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       Oxidation is a process in which an atom taking part in chemical reaction loses one or more electrons. Te loss of electrons results in the increase of positive charge ( or ) decrease of negative of the species.
Example :

               Mg         →   Mg2+   +   2e-   ( increase of positive charge )

               Fe2+       →  Fe3+    +   e-       ( increase of positive charge ) 

                Cu        →  Cu2+    +   2e-   ( increase of positive charge ) 

              S2-          →    S      +     2e-     ( decrease of negative charge )


               MnO42-  →   MnO4-   +  e  ( decrease of negative charge ) 

  • Loss of electrons during the reactions are called reducing agents or reductants. In the above equation Mg  , Fe2+  ,  Cu are reducing agents.  
  • Some important oxidizing agents are,  O2 , O3 , H2O2 , Cl2 , HNO3 , KMnO4 ,  etc.

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The process in which any substance loses one or more electrons.

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