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General Principles and processes of Isolation of Elements
easy
Poling process is used for
A
The removal of $Cu_2O$ from $Cu$
B
The removal of $Al_2O_3$ from $Al$
C
The removal of $Fe_2O_3$ from $Fe$
D
All of these
Solution
When impure metal has impurity of its own metal oxide, then Poling process is used, e.g., impure $Cu$ and $Sn$ are purified by this method.
Standard 12
Chemistry
