MetallurgyHard
Question
Poling process is used for the :
Options
A.reduction of CuO to Cu in impure copper
B.purification of silver
C.reduction of Al2O3 to Al
D.none
Solution
Poling is used for the purification of those compounds which contain the impurities of their own oxide like CuO in Cu, SnO in Sn.
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