Question

Which gases are produced at the cathode and the anode when brine solution is electrolysed? What is left in the vessel ? ​

Answer 1

Answer:

chlorine is produced at cathode and hydrogen is produced at anode. Na and O2 will left in the vessel

Answer 2

Answer:

Brine is moderately concentrated sodium chloride solution (brine) with carbon (graphite) gives equal volumes of hydrogen gas (hydrogen ions H+ discharged at the –ve cathode) and green chlorine gas (chloride ions Cl– discharged at the +ve anode) with sodium hydroxide left in solution