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On electrolysis in which of the followin...

On electrolysis in which of the following, `O_(2)` would be liberated at the anode?

A

Dilute `H_(2)SO_(4)` with Pt electrodes

B

Aqueous `AgNO_(3)` solution with Pt electrodes

C

Dilute `H_(2)SO_(4)` with Cu electrodes

D

Aqueous NaOH with a Fe cathode and a Pt anode

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The correct Answer is:
A, B, D
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