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+, OH1-, SO42-, H+].
(iv) When dilute sodium chloride is electrolysed using graphite electrodes, the cation which is discharged at the cathode most readily. [Na1+, OH1-, H1+, Cl1-].
(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…

A, B and C are three electrolytic cells, connected in different circuits. Cell ‘A’ contains NaCl soln., and the bulb in the circuit glows brightly, when the circuit is completed. Cell ‘B’ contains acetic acid and the bulb glows dimly. Cell ‘C’ contains sugar soln., and the bulb does not glow. Give reasons for each observation.

When the switch is 'On' the electrolyte starts dissociating. Current remaining the same, the glow of the bulb indicates whether the electrolyte is a strong, weak or a non-electrolyte. As…