Question

4. Briefly explain the Chloro-alkali processes in the production of Sodium Hydroxide,
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Answer 1

Explanation:

When electricity is passed true an aqueous solution of sodium chloride ( called brine), it decomposes to form sodium hydroxide. ... Because the products formed chlor for chlorine and alkali for sodium hydroxide

Answer 2

Answer:

Formation of Caustic soda:)

i.e NaOH (sodium hydroxide)

It is formed when we pass electricity through brine( salt solution)

reaction: NaCl + H2O ----------------> NaOH + H2 +Cl2. ( electricity)

since chlorine Gas and NaoH which is an alkaline is formed hence this process is called as chlor-alkali process...

Explanation:

When electricity is passed through brine, NaCl dissociates and hence forms Na+ and Cl minus ions. Similarly water ( H2O) dissociates and forms H+ and OH minus ions. Since Cl is a negatively charged ion it gets attracted towards Anode (+vely charged rod), but they are not stable, to gain stability they combine with each other forming Cl2 i.e chlorine gas. Similarly H+ is a positively charged ion hence it gets attracted towards cathode (-vely charged rod) still they are not stable to become stable they combine with each other with the formation of H2 i.e hydrogen gas. Finally we are left over with Na+ and OH- , as they are oppositely charged they attract each other leading to the formation of ionic compond i.e NaOH ( sodium hydroxide)...