In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?

Question

Statement I: Along the period, the chemical reactivity of the element gradually increases from group 1 to group 18.
Statement II: The nature of oxides formed by group 1 element is basic while that of group 17 elements is acidic.
In the light of the above statements, choose the most appropriate from the questions given below:

Answer 1

During the electrolytic refining of metal M:

Anode \(→\) Impure metal M.
Cathode \(→\) A thin strip of pure metal M.
Electrolyte \(→\) A solution containing a salt of metal M.

Metal	Li	Na	K	Mg	Cu	Ag
W_o/eV	2.42	2.3	2.25	3.7	4.8	4.3

In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?

Solution and Explanation

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