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Can someone help me with this, During the process of electrolytic refining of copper, some metals present as impurity settle as ' anode mud ' These are

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

 
Answers (1)
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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)

Sn \: and\: Ag

This option is incorrect.

Option 2)

Pb \: and\: Zn

This option is incorrect.

Option 3)

Ag \: and\: Au

This option is correct.

Option 4)

Fe \: and \: Ni

This option is incorrect.

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