In the extraction of aluminium metal, one of the process is summarised as follows :<br>Al2O3.3H2O (b — Metallurgy and Isolation of Elements Chemistry Question

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In the extraction of aluminium metal, one of the process is summarised as follows :<br>Al2O3.3H2O (bauxite) Impure $\xrightarrow{\text{hot concentrated 'A'}}$ Product 'B' (aqueous soln.) $\xrightarrow{\text{bubble gas 'C' to change pH}}$ Pure Al2O3.3H2O $\xrightarrow{\text{mix with 'D' melt at 1000}^\circ\text{C}}$ Aluminium at 'E' $\leftarrow$ electrolyse molten material with carbon electrodes<br>Which of the following entries correctly summarises reagents, electrodes & products of the process?