Which solution is used as electrolyte in the extraction of aluminium metal ?
Answer»
`Al_(2)O_(3).H_(2)O` `Al_(2)O_(3) " and " Na_(3)AlF_(6)` (molten SOLUTION) `Al_(2)O_(3)` NONE of these
Solution :Molten solution of `Al_(2)O_(3) " and " Na_(3)AlF_(6)` is used as ELECTROLYTE because `Al_(2)O_(3)` as such is a poor CONDUCTOR of electricity.