In electrolysis of aluminium oxide which of the following is added to accelerate the process?

Which of the following is an oxidation process?

Aluminium oxide is following type of an oxide.

Aluminium is extracted from bauxite by the electrolysis of aluminium oxide dissolved in cryolite. Now answer the following question: Name the process used for the purification of bauxite.

Aluminium is extracted from bauxite by the electrolysis of aluminium oxide dissolved in cryolite. Now answer the following question: Why is so much graphite required for this electrolytic process?

Aluminium is extracted from bauxite by the electrolysis of aluminium oxide dissolved in cryolite. Now answer the following question: Write the formula of cryolite.

Aluminium is extracted from bauxite by the electrolysis of aluminium oxide dissolved in cryolite. Now answer the following question: When bauxite is treated with sodium hydroxide solution, what happens to the aluminium oxide and iron (III) oxide?

Aluminium is extracted from bauxite by the electrolysis of aluminium oxide dissolved in cryolite. Now answer the following question: Write the equation for the action of heat on aluminium hydroxide.