Electroplating

Electroplating Quiz

Spec 3.3.2 · Oxford AQA IGCSE Chemistry: Quiz

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5 questions, one answer each

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  1. 1. What is electroplating?

    • A. Melting two metals together to form an alloy
    • B. Using electrolysis to coat an object with a layer of another metal
    • C. Extracting a metal from its ore using electricity
    • D. Testing a metal ion using a flame test

  2. 2. Which of these is NOT a reason objects are electroplated?

    • A. Appearance
    • B. Durability
    • C. Prevention of corrosion
    • D. Increasing the object's overall reactivity

  3. 3. In an electroplating cell, what is the object being coated connected as?

    • A. The anode
    • B. The cathode
    • C. Neither electrode
    • D. Both electrodes simultaneously

  4. 4. What is the electrolyte in an electroplating set-up made from?

    • A. Pure water only
    • B. A solution containing ions of the coating metal
    • C. Molten coating metal
    • D. Dilute hydrochloric acid

  5. 5. A jeweller electroplates a brass ring with gold. During the process, why does the pure gold anode gradually lose mass?

    • A. Gold atoms evaporate into the air
    • B. The gold anode dissolves, releasing Au ions to replace those deposited on the ring
    • C. The gold anode reacts with the brass
    • D. The power supply removes gold atoms directly without ionisation

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