State the electrode reaction at the respective electrodes during extraction of Al from `Al_(2)O_(3)`

State the electrode reaction at the anode during electrolysis of: acidified water.

State the electrode reaction at the anode during electrolysis of: fused lead bromide.

What are the reactions taking place at the two electrodes during electrolysis of fused Al_2O_3 containing cryolite (Na_3AlF_6) ?

Write the equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode ) during the electrolysis of Acidified copper sulphate solution with copper electrodes . (ii) Molten lead bromide with (graphite ) electrodes .

Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of: Molten lead bromide with inert electrodes.

State the electrode reaction at the anode during electrolysis of: aqueous copper sulphate using platinum electrodes

(i) Name the method of refining of metals such as Germanium. (ii) In the extraction of Al, impure Al_(2)O_(3) is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process? (iii) What is the role of coke in the extraction of iron from its oxides?

Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of: Acidified copper sulphate solution with copper electrodes.

State the electrode reaction at the anode during electrolysis of: aqueous nickel sulphate solution using nickel anode.

How much electricity in terms of Faraday is required to produce 40.0 g of Al from molter Al_(2)O_(3) ?