CAIE IGCSE Chemistry 4.1.7 Metals Are Electroplated Questions

Select the correct electroplating apparatus and describe how electrode and electrolyte choices coat a metal object.

Exam points

Choose the object as cathode, a suitable anode and an aqueous salt supplying the coating metal’s ions in an electroplating setup.
Explain why chromium plating needs replacement metal ions while a copper anode supplies copper ions during copper plating.
Change a copper-plating setup to nickel plating by replacing the copper anode with nickel and using aqueous nickel(II) sulfate.

[Maximum number: 1]

An object is electroplated with silver using an aqueous silver salt as the electrolyte.
Which row is correct?

the object to be
electroplated is the

the other electrode
is made from

anode

carbon

anode

silver

cathode

carbon

cathode

silver

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