Dear student
A redox reaction is one in which reduction and oxidation occurs simultaneously.
(i) Cathode (Reducing electrode) – At cathode, the cations gain electrons to form neutral atoms. As electrons are gained, the ion is said to be reduced.
(ii) Anode (Oxidizing electrode) – At anode, the anions lose electrons to form neutral atoms. As electrons are lost, the ion is said to be oxidized.
Electrolysis is a redox reaction because reduction takes place at cathode and oxidation takes place at anode and both these reactions occur simultaneously.
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