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NTA Abhyas JEE Main2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

During the process of electro refining of copper, some metals present as impurity settle down as anode mud. These are:

Options

  1. AS n and A g
  2. BPb and Z n
  3. CAg and A u
  4. DFe and N i

Correct answer

C. Ag and A u

Step-by-step solution

In anode mud, less electropositive elements are present. A g and A u are less electropositive than C u .

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