How caustic soda is prepared on commercial scale

1.	How caustic soda is prepared on commercial scale
Answer» Caustic SODA is generally prepared by electrolysis of sodium chloride in Castner-kellner cell. A brine solution is electrolyzed using mercury CATHODE and carbon anode. Sodium METAL, discharged at the cathode, COMBINE with mercury to form sodium amalgam. Cl gas is evolved at the cathode.Hope the ANSWER helps you.

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