A) Sodium
B) Blister copper
C) Zinc
D) Silver
Correct Answer: B
Solution :
Poling is used for purification of metal which contain their own oxide as impurity e.g. \[C{{u}_{2}}O\] in \[Cu\]; \[Sn{{O}_{2}}\] in \[Sn\]You need to login to perform this action.
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