Extraction of Aluminium — Prelims Questions

Which of the following statements about the Bayer's process for the purification of bauxite is INCORRECT?

In the Hall-Héroult process for the extraction of aluminium, what is the primary function of cryolite ($Na_3AlF_6$)?

During the Hall-Héroult process, the carbon anodes are continuously consumed. Which of the following reactions primarily accounts for this consumption?

Which of the following is NOT a characteristic property of aluminium that makes it widely used?

Which of the following is the correct sequence of steps in the Bayer's process for purifying bauxite?

What is the primary reason for the high energy consumption in the Hall-Héroult process?