During the electrolysis of an aqueous solution of KI, I₂ will be formed at the anode.
It is process by which electric current is passed through a substance to effect a chemical change.
The chemical change is one in which the substance loses or gains an electron (oxidation or reduction).
In order for KI to undergo electrolysis it has to be in its molten state or aqueous state because this will enhance the migration of ions.
The following reactions and observations occur during the electrolysis of aqueous solution of KI.
At the anode,
Two reactions are like to occur that the one in which the I⁻ is oxidized to give I₂ and the one in which oxygen is formed from water but in both above only the case in which I₂ is produced is the one that is been observed because of the presence of the violet colour.
The equation of Reaction is given below;
2 I⁻ (aq) -------> I₂ (g) + 2 e⁻
Note that the I₂ is in gaseous form.
Hence, During the electrolysis of an aqueous solution of KI, I₂ will be formed at the anode.
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