Following flow diagram represents the extraction of aluminium from bauxite,

Select the incorrect statement.

Options

A. Bauxite is purified by Hall's Serpeck's and Bayer's process.
B. In the electrochemical process for aluminium extraction, a molten of `Al_(2)O_(3), Na_(3)AlF_(6) or CaF_(2) is used as electrolyte`.
C. Hydroted alumia is converted to anhydrous alumina by calcination process.
D. None of these

Answer

d