Select the correct answer from the list in brackets:

(i) An aqueous electrolyte consists of the ions mentioned in the list. The ion which could be discharged most readily during electrolysis. [Fe²⁺, Cu²⁺, H⁺].

(ii) The metallic electrode which does not take part in an electrolytic reaction. [Cu, Ag, Pt, Ni].

(iii) The ion which is discharged at the anode during the electrolysis of copper sulphate solution using copper electrodes as anode and cathode. [Cu²⁺, OH^1-, SO₄^2-, H⁺].

(iv) When dilute sodium chloride is electrolysed using graphite electrodes, the cation which is discharged at the cathode most readily. [Na¹⁺, OH^1-, H¹⁺, Cl^1-].

(v) During silver plating of an article using potassium argentocyanide as an electrolyte, the anode material should be [Cu, Ag, Pt, Fe].

(i) An aqueous electrolyte consists of the ions mentioned in the list. The ion which could be discharged most readily during electrolysis. — Cu²⁺.

(ii) The metallic electrode which does not take part in an electrolytic reaction. — Pt.

(iii) The ion which is discharged at the anode during the electrolysis of copper sulphate solution using copper electrodes as anode and cathode. — Cu²⁺.

(iv) When dilute sodium chloride is electrolysed using graphite electrodes, the cation which is discharged at the cathode most readily. — H¹⁺

(v) During silver plating of an article using potassium argentocyanide as an electrolyte, the anode material should be — Ag.