Chemistry
Rohan wants to electroplate a spoon with nickel.
(a) To which electrode should he connect the article to be electroplated?
(b) Write the equation for the reaction that will occur at the cathode.
(c) What should the anode be made up of?
Answer
(a) The article to be electroplated is placed is made as cathode. This is because metal cations from the electrolyte will move toward the cathode and get reduced and deposited on the spoon.
(b) Ni2+ + 2e- ⟶ Ni
(c) The anode should be made of pure nickel metal. During electroplating, nickel atoms from the anode dissolve into the solution as Ni2+ ions, maintaining a steady concentration of nickel ions in the electrolyte.
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