In the electrorefining of copper,some gold is deposited as:

The amount of electricity which release 2.0g of gold from a gold salt is same as that which dissolves 0.967g of copper anode during the electrolysis of copper sulphate solution. What is the oxidation number of gold in the gold ion ? (At mass of Cu=63.5,Au=197)

Fool's gold is known as

A current of 4 amp was passed for 1.5 hours through a solution of copper sulphate when 3.2 g of copper was deposited. Calculate the current efficiency.

Fill in the blanks. . If you pass current through copper sulphate solution , copper gets deposited on the plate connected to the …………………terminal of the battery.

Fill in the blanks If you pass current through copper sulphate solution copper gets deposited on the plate connected to the …………… terminal of the battery.

Aquesous copper sulphate solution and aqueous silver nitrate solution are electroolysed by 1 Ampere current for 10 minutes in separate electrolytic cells. Will the mass of copper and silver deposited on the cathode be same or different? Explain your answer.