Question

An aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal. Why??

Answer 1

An aqueous solution of sodium chloride is not used for electrolysis because aqueous solution contains water as well which results in the formation of sodium hydroxide in the solution and sodium metal is not obtained.

NaCl(aq) -Electricity- NaOH(aq) + H2(g)(at cathode) + Cl2(g)(at anode)

Hence molten sodium chloride is used to extract sodium from sodium chloride.

NaCl(l) -Electriciry-Na(s)(at cathode) + Cl2(g)(at anode)

Answer 2

Secondary SchoolChemistry5 points

An aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal. Why??

Advertisement

Ask for details FollowReport by Jiya7909.02.2018

Answers

Me · Beginner

Know the answer? Add it here!

Dev1632002Helping Hand

An aqueous solution of sodium chloride is not used for electrolysis because aqueous solution contains water as well which results in the formation of sodium hydroxide in the solution and sodium metal is not obtained.

NaCl(aq) -Electricity- NaOH(aq) + H2(g)(at cathode) + Cl2(g)(at anode)

Hence molten sodium chloride is used to extract sodium from sodium chloride.

NaCl(l) -Electriciry-Na(s)(at cathode) + Cl2(g)(at anode)