Question

In purification of Bauxite by Hall's process :

• A. it is heated with $NaOH$ solution at ${50}^{0}C$
• B. it is heated with $NaHC{O}_3$
• C. bauxite ore is heated with $N{a}_{2}C{O}_3$
• D. none of these

Answer 1

The correct option is B it is heated with $NaHC{O}_3$

In Halls's process, bauxite is treated with $NaHC{O}_3$
Hence option B is correct.