Question

A metal which is refined by poling is.

• A. Sodium
• B. Blister copper
• C. Zinc
• D. Silver

Answer 1

Answer: (B)

Blister copper

Answer 2

Poling is used for purification of metal which contain their own oxide as impurity

e.g. $Cu_{2}O$ in $Cu$; $SnO_{2}$ in $Sn$