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By the electrolysis of an aqueous soluti...

By the electrolysis of an aqueous solution of `CuSO_(4)` the products obtained at both the electrodes are

A

`H_(2)` at anode, Cu at cathode

B

`H_(2)S_(2)O_(s)` at anode `O_(2)` at cathode

C

`O_(2)` at anode, `H_(2)` cathode

D

`O_(2)` at anode, Cu at cathode

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