Which one of the following electrolyte does not liberate oxygen at anode during electrolysis
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a
aq. AgNO3 using inert electrodes
b
Fused NaOH using inert electrodes
c
aq.Na2SO4 using inert electrodes
d
aq. KCl using inert electrodes
answer is D.
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Detailed Solution
During the electrolysis of aqueous KCl using inert electrodes, chlorine is liberated at anode(explained on the basis of over potential).Anode-2Cl- →Cl2+2e