1.

Extraction of aluminumcan beunderstoodbyWhich of the following statement is/are correct ?

Answer»

In Serpeck's process for the PURIFICATION of bauxite, ammonia is obtained as a by product
In the Hall's process for the purification of bauxite, the ore is fused with NaOH
In Hall-Heroult's process for the REDUCTION of ALUMINA, a mixture of alumina, cryolite and fluorspar is used
In the Bayer's process for the purification of bauxite, the ore is digested with `Na_(2)CO_(3)`

Solution :In the Hall.s process for the purification of bauxite the ore is fused with `Na_(2)CO_(3)`.
In the Bayer.s process for the purification of bauxite the ore is digested with NaOH.


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