Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
The anodic mud obtained during electrorefming of Cu contains: (1) \[Ag\] (2) \[Fe\] (3) \[Au\] (4)\[Zn\]A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: D
Solution :
In the electro refining of Cu, the noble metals like Ag and Au settle down as anode mud.
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