SSC Steno Grade C and D 09 Jan 2011 Paper

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Question : 83 of 200

Marks: +1, -0

Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives

Copper at cathode and oxygen at anode.
Copper at anode and oxygen at cathode.
Copper at cathode and anodes dissolve to give copper.
Hydrogen at cathode and oxygen at anode.

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