During the process of electrolytic refining of copper, some metals present as impurity settle as ' anode mud ' These are
As we learnt in
Electrolytic Refining -
Many of the metals such as Cu,Au,Ag,Al,Hb etc are purified by this method.
- wherein
The impure metal is made anode while a thin sheet of pure metal acts as a cathode.
In electrolytic refining of copper, electropositive impurities like Fe, Zn, etc dissolve in the solution and less electropositive impurities like Ag, Au, etc collect below the anode.
Option 1)
This option is incorrect.
Option 2)
This option is incorrect.
Option 3)
This option is correct.
Option 4)
This option is incorrect.
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