Question

What is necessary condition for the formation of sodium

hydroxide from sodium and water?​

Answer 1

Answer:

This involves the electrolysis of an aqueous solution of sodium chloride. The sodium hydroxide builds up at the cathode, where water is reduced to hydrogen gas and hydroxide ion: 2Na+ + 2H2O + 2e− → H2 + 2NaOH. To produce NaOH it is necessary to prevent reaction of the NaOH with the chlorine.