The cathode in the electrolysis of an aqueous solution KCl is K⁺. This is further explained below.
What is Electrolysis?
Electrolysis is simply an electric current that is sent through a liquid or solution containing ions, causing chemical breakdown.
Generally, the equation for the Chemical reaction is mathematically given as
[tex]2H_20 +2e^- --- > H_2 +2OH^-[/tex]
Hence
[tex]K^+ +OH^- +H_2 = KOH +H_2[/tex]
In conclusion, a cathode where KOH and H2 have formed the cathode in the electrolysis is K⁺
Read more about Chemical reaction
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