4. Lead is deposited at the cathode Reaction at cathode : Pb2+ + 2e– ⟶ Pb

Cu ⟶ Cu2+ + 2e– This reaction takes place at anode. This is an example of oxidation.

Cu2+ (Copper ions will get discharged at cathode) Reaction at Cathode: Cu2+ + 2e– ⟶ Cu

(D) Copper [II] sulphate At cathode : Cu2+ + 2e– ⟶ Cu

Acetic acid Reason — Acetic acid is a weak electrolyte and particles in a weak electrolyte...

Molten lead bromide conducts electricity. Reason — Solid lead bromide is a non-conductor of electricity since it’s...

(i) It is a Complex Salt. (ii) Migration of Ag1+ ions from above complex salt soln....

(i) Nickel ion moves towards the cathode. (ii) Product at anode – Nil [Ni2+ are formed]

Lead (II) bromide Reason — During electrolysis of Lead [II] bromide, Br-1 ions are discharged at the...

(i) (a) The electrolyte — Aq. soln. of nickel sulphate (b) The cathode — Cleaned...