Question
Question: During the process of electro-refining of copper some metals present as impurity settle as anode mud...
During the process of electro-refining of copper some metals present as impurity settle as anode mud. These are :
A
Sn and Ag
B
Pb and Zn
C
Ag and Au
D
Fe and Ni
Answer
Ag and Au
Explanation
Solution
Anode mud contains Ag, Pt, Sb, Se, Te and Au as impurities.