[" In the extraction of aluminium by Hall-Heroult "],[" process,purified "Al_(2)O_(3)" is mixed with "CaF_(2)" to "]

In the extraction of aluminium by Hall-Heroult process purified AI_(2)O_(3) is mixed with CaF_(2) to

In the extraction of aluminium by Hall-Heroult process, purified Al_2O_3 is mixed with CaF_2 to

Hall-Heroult's process is given by :

Hall-Heroult's process is given by :

Explain the extraction of aluminium from purified alumina by Hall-Heroult process.

During the extraction of aluminium by Hall-Heroult process at which electrode oxygen gas is liberated.

Assertion : In the metallury of aluminium , purified Al_(2)O_(3) is mixed with Na_(3)AlF_(6) or CaF_(2) . Reason : Na_(3)AlF_(6) or CaF_(2) lowers the melting point of mixture and increases its conductivity.

Assertion : In the metallury of aluminium , purified Al_(2)O_(3) is mixed with Na_(3)AlF_(6) or CaF_(2) . Reason : Na_(3)AlF_(6) or CaF_(2) lowers the melting point of mixture and increases its conductivity.