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In electroplating, the article to be plated is made the

  • A.anode
  • B.electrolyte
  • C.reference electrode
  • D.cathode

Answer: D

Correct answer: cathode

The article is made the cathode so that metal ions in the bath are reduced onto its surface. The anode is generally the plating metal itself, dissolving to replenish the solution as it is consumed. Everything about the quality of the deposit - adhesion, thickness, uniformity - depends on current density and on the surface preparation of that cathode.

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