Question

explain chlor -alkali method with the chemical reaction involved.

Answer 1

this is the process of preparing sodium hydroxide...............
NaCl + H2O = NaOH + Cl2 + H2

the solution of salt and water is called "brim water"

Answer 2

When electricity is passed through an aqueous solution of sodium chloride it decomposes to form sodium hydroxide. The process is called the chlor-alkali alkali process because of the products formed: chlor for chlorine and alkali for Sodium Hydroxide. Chlorine gas is given off at the anode and hydrogen gas at the cathode.

An aqueous solution of sodium chloride is called brine.

2NaCl (aq) + 2H2O(l) ---(electrolysis) → 2NaOH(aq) + Cl2(g) + H2(g)