Electroplating and Metal Coating Quiz

What is the primary purpose of electroplating a metal?

• To increase its weight

• To make it look more expensive or prevent corrosion

• To change its color

• To make it magnetic

In the electroplating setup, what is the role of the silver nitrate?

• It acts as a solvent

• It acts as a catalyst

• It cleans the metal surface

• It provides silver ions for plating

Why must the object to be plated be connected to the cathode?

• To make it dissolve in the solution

• To allow it to gain electrons and attract metal ions

• To prevent it from rusting

• To ensure it is positively charged

What happens to silver ions at the cathode during electroplating?

• They are oxidized to form silver oxide

• They are reduced to form silver metal

• They dissolve in the electrolyte

• They react with hydrogen ions

What is the result of the chemical reaction at the cathode in electroplating?

• The object becomes magnetic

• The object is coated with a layer of zinc

• The object is coated with a layer of silver

• The object changes color