Mr. Ramu wants to electroplate his key chain with nickel to prevent rusting. For this electroplating:
(i) Name the electrolyte
(ii) Name the cathode
(iii) Name the anode
(iv) Give the reaction at the cathode
(v) Give the reaction at the anode.

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Solution

(i) Electrolyte - Aqueous solution of nickel sulphate

(ii) Cathode - Cleaned key chain to be electroplated

(iii) Anode - Block of nickel metal

(iv) Reaction at cathode: From the electrolyte, the nickel ions gain electrons to form nickel atoms, that get deposited on the article (key chain) as a layer of nickel:

${Ni}^{2 +} + 2 e^{-} \overset{}{\to} Ni (from e l e c t r o l y t e) N i c k e l d e p o s i t e d o n a r t i c l e$

(v) Reaction at anode: The nickel anode loses electrons to become nickel ions and goes into the electrolyte.

$Ni \overset{}{\to} {Ni}^{2 +} (into electrolyte) + 2 e^{-} (from anode) Nickel ions$

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Mr. Ramu wants to electroplate his key chain with nickel to prevent rusting. For this electroplating: (i) Name the electrolyte (ii) Name the cathode (iii) Name the anode (iv) Give the reaction at the cathode (v) Give the reaction at the anode.

Mr. Ramu wants to electroplate his key chain with nickel to prevent rusting. For this electroplating:
(i) Name the electrolyte
(ii) Name the cathode
(iii) Name the anode
(iv) Give the reaction at the cathode
(v) Give the reaction at the anode.