Which of the following is not related to the extraction of aluminium?
Bayer’s process
Bauxite
Hall-Heroult process
Consider the following statements about the extraction of aluminium:
P: Bauxite ore is used for the extraction of aluminium. Q: KCl used to leach alumina from bauxite in Bayer's process. R: In Hall-Heroult process, aluminium is obtained at the cathode.
Which of the following statements are true?
Hall-Heroult process is used for the extraction of …….