1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Alkali metals are obtained by electrolysis of molten salt and not aqueous solution. Reason: The discharge potential of H+ ions is lower than alkali metal cation hence hydrogen is discharged at cathode instead of metal.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion : Alkali metals are obtained by electrolysis of molten salt and not aqueous solution.
Reason : The discharge potential of $H^+$ ions is lower than alkali metal cation hence hydrogen is discharged at cathode instead of metal.

The s-Block Elements

Solution:

Alkali metals are obtained by electrolysis of molten salt and not aqueous solution because $H _{2}$ is liberated at cathode instead of alkali metal.