JEE Advanced 2020 Full Test 3 Paper 2

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Question : 28 of 54

Marks: +1, -0

On electrolysis, in which of the following, O2 would be liberated at the anode?

dil H2SO4 with Pt electrode
aq. AgNO3 with Pt electrode
dil H2SO4 with Cu electrode
aq. NaOH with Pt electrode

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