Starting from sodium chloride, how will you proceed to prepare (i) sodium metal (ii) sodium hydrxide (iii) sodium peroxide (iv) sodium carbonate.

Explanation

(i) Preparation of sodium Meal : Sodium metal is formed by carring out the electrolytic reduction of the salt in the molten state.
`NaCI(l)overset("Electrolysis")hArrNa^(+)+CI^(-)`
At cathode : `Na^(+)+e^(-)to Na`
At anode : `CI^(-)to Ci +e^(-),CI + CI to CI_(2)`
(ii) Preparation of sodium hydroxide : Sodium hydroxide is prepared by carrying out the electrolysis of the aqueous solution of sodium chloride either in Nelson's cell or Castner Kellner cell.
(iii) Preparation of sodium peroxide : Sodium chloride is first converted to sodium by electrolytic reduction. The metal is then heated with excess of oxygen at about 573K in a atmosphere free from miosture and carbon dioxide to form sodium peroxide.
(iv) Preparation of sodium carbonate : From sodium chloride, sodium carbonate is prepeard by Solvay ammonia process.