Question
Chemistry Question on General Principles and Processes of Isolation of Elements
Bauxite, an ore of aluminium is purified by
A
Hall?s process
B
Serpek?s process
C
Bayer?s process
D
all of these.
Answer
all of these.
Explanation
Solution
Hall's and Bayer's processes are used if aluminium ore contains iron oxide as impurity, while Serpek's process is used when SiO2 is present as an impurity.