- #1
jd12345
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What are the products of electrolysis of brine solution?
At cathode i know it will be hydrogen
But i am confused about the products at anode:-
Either water will get oxidised or chlorine. Considering the oxidation potential values - water should get converted to oxygen but practically chlorine is obtained. My book says it is because of overpotential of oxygen( what does overpotential means?)
Also what has concentration related to the products obtained - example :- when electrolysis of sulphuric acid is done - water is oxidised to oxygen if solution is dilute and SO4 2- is oxidised to S2O82- if it is concentrated. Why?
Even if SO4 2- is available easily then also the most favoured reaction should proceed right? - which is oxidation of water
At cathode i know it will be hydrogen
But i am confused about the products at anode:-
Either water will get oxidised or chlorine. Considering the oxidation potential values - water should get converted to oxygen but practically chlorine is obtained. My book says it is because of overpotential of oxygen( what does overpotential means?)
Also what has concentration related to the products obtained - example :- when electrolysis of sulphuric acid is done - water is oxidised to oxygen if solution is dilute and SO4 2- is oxidised to S2O82- if it is concentrated. Why?
Even if SO4 2- is available easily then also the most favoured reaction should proceed right? - which is oxidation of water