In the purification of bauxite by Hall's process
Bauxite ore is heated with $NaOH$ solution at ${50\,^o}C$
Bauxite ore is fused with $N{a_2}C{O_3}$
Bauxite ore is fused with coke and heated at ${1800\,^o}C$ in a current of nitrogen
Bauxite ore is heated with $NaHC{O_3}$
Carbongene has $X\%$ of $CO_2$ and is used as an antidote for poisoning of $Y.$ Then, $X$ and $Y$ are
Heating an aqueous solution of aluminium chloride to dryness will give
Colour of the bead in borax bead test is mainly due to the formation of
$H_3BO_3$ is
In the thermite process the reducing agent is