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Durinh electrlysis of an aqueous solution of `CuSO_(4)` using copper electrodes, if `2.5g` of `Cu` is deposited at cathode, tehn at anodeA. 890 mL of `O_(2)` at STP is liberatedB. 445 mL of `O_(2)` at STP is liberatedC. 445 mL of `O_(2)` at STP is liberatedD. 2.5 g of copper is deposited |
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Answer» Correct Answer - D Copper electrodes are reactive electrodes. `implies` At anode: `CutoCu^(2+)+2e^(-)` At cathode: `Cu^(2+)+2e^(-)toCu` So, mass of Cu deposited on cathode `=` mass of Cu decreased at anode. |
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