In the purification of bauxite by Hall's process
In the purification of bauxite by Hall's process
- A
Bauxite ore is heated with $NaOH$ solution at ${50\,^o}C$
- B
Bauxite ore is fused with $N{a_2}C{O_3}$
- C
Bauxite ore is fused with coke and heated at ${1800\,^o}C$ in a current of nitrogen
- D
Bauxite ore is heated with $NaHC{O_3}$
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- [AIPMT 1995]
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