Extraction of chlorine from brine solution is based on

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.

Electrolysis of aqueous $Na_2SO_4$ was carried out by passing a current of $3 \ A$ for $10 \ min$. The volume of the gas $(L)$ at $STP$ at the anode of the cell is approximately

When $1 \ A$ of current flows for $1 \ s$ through a conductor,this quantity of electricity is known as

What happens to the $pH$ during the electrolysis of aqueous $CuSO_4$ using platinum electrodes?

Electrolysis of concentrated aqueous solution of $NaCl$ results in