The Chlor-alkali process is used in the electrolysis of $$NaCl$$. The important products formed in this process are sodium hydroxide, chlorine, and hydrogen gas. $$2NaCl + 2H_2O longrightarrow 2NaOH + Cl_2 + H_2$$ An electric current is passed through the brine to form $$H_2$$ at the cathode and $$Cl_2$$ at the anode, leaving a solution of sodium hydroxide. Uses:- $$NaOH$$ - For soaps and detergents. $$Cl_2$$ - PVC, pesticides. $$H_2$$ - Fuels, production of $$NH_3$$.