The role of using mercury as cathode and anode at the bottom of the tank in the Castner-Kellner cell is

The role of using mercury as cathode and anode at the bottom of the ta

1.	The role of using mercury as cathode and anode at the bottom of the tank in the Castner-Kellner cell is
Answer» MERCURY is non TOXIC mercury is a bad conductor mercury ACTS as intermediate electrode and discharges NAT easily mercury is a metal Answer :C