Nowadays,how can the quantity of electricity $Q$ be measured in an electrolytic cell?

During the electrolysis of fused $NaCl$,which reaction occurs at the anode?

Which of the following will give $H_{2(g)}$ at cathode and $O_{2(g)}$ at anode on electrolysis using platinum electrodes?

Predict the products of electrolysis in each of the following:
$i$. An aqueous solution of $AgNO_3$ with silver electrodes
$ii$. An aqueous solution of $AgNO_3$ with platinum electrodes
$iii$. $A$ dilute solution of $H_2SO_4$ with platinum electrodes
$iv$. An aqueous solution of $CuCl_2$ with platinum electrodes.

Which of the following statements is correct regarding the electrolysis of molten $NaCl$?

When electric current is passed through a cell having an electrolyte,the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution,what happens to the ions?