$A$ solution of $Na_2SO_4$ in water is electrolysed using inert electrodes. The products at cathode and anode are respectively

Give the electrolytic reactions of molten $NaCl$ occurring at inert electrodes.

$O_2$ gas will be evolved as a product of electrolysis of $:$
$(A)$ an aqueous solution of $AgNO_3$ using silver electrodes.
$(B)$ an aqueous solution of $AgNO_3$ using platinum electrodes.
$(C)$ a dilute solution of $H_2 SO_4$ using platinum electrodes.
$(D)$ a high concentration solution of $H_2 SO_4$ using platinum electrodes.
Choose the correct answer from the options given below $:$

Electrolysis of aqueous $HCl$ solution produces

Describe the method of obtaining chlorine from brine (sea water) and write the oxidation-reduction reactions,specifying the products at the anode and cathode.

Which of the following elements is extracted commercially by the electrolysis of an aqueous solution of its compound?