Write the electronic concept of oxidation and reduction reactions.

Explanation

(i) When oxidation and reduction take place simultaneously in a given rection it is termed as Redox reaction.
(ii) During oxidation a reactant combines with oxygen or loses hydogen and drung reduction it gains hydrogen or loses oxygen.
(iii) Example of Redox reaction:

(iv) In the above reaction, `SO_(2)` is reduced and `H_(2)S` is oxidised.