Question

When an aqueous concentrate solution of lithium chloride is electrolysed using inert electrodes:

• A. $C{l}_2$ is liberated at the anode
• B. $Li$ is deposited at the cathode
• C. as the current flows, $pH$ of the solution around the cathode remains constant
• D. as the current flows, $pH$ of the solution around the cathode increases

Answer 1

Answer: (A), (D)

$C{l}_2$ is liberated at the anode
as the current flows, $pH$ of the solution around the cathode increases

As chloride ion have more oxidation potential than hydroxide ion, so $C{l}_2$ is liberated at the anode.
And reduction potential of hydrogen ion is more so hydrogen gas produces at cathode so as the current flows, pH of the solution around the cathode increases.