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During the process of electrolytic refining of copper, some metals present as impurity settle as ' anode mud ' These are

  • Option 1)

    Sn \: and\: Ag

  • Option 2)

    Pb \: and\: Zn

  • Option 3)

    Ag \: and\: Au

  • Option 4)

    Fe \: and \: Ni

 
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...
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