Electrochemistry Quiz

What is the industrial process for the electrolysis of sodium chloride solution?

• Electroplating

• Chlor-Alkali electrolysis

• Brush electroplating

• Electroless deposition

What are the products of the chloralkali process when using calcium chloride or potassium chloride?

• Sodium hypochlorite or sodium chlorate

• Hydrogen and oxygen

• Calcium or potassium

• Chlorine and sodium hydroxide

Which method of chloralkali production uses no mercury but requires the removal of chlorine from sodium hydroxide?

• Electroless deposition

• Mercury cell method

• Diaphragm method

• Membrane cell

What is the purpose of electroplating?

• To change the surface properties of an object

• To form objects by electroforming

• To create coins

• To produce hydrogen gas

What is the anode usually made of in the electroplating process?

• Lead or carbon

• Copper

• Zinc

• The metal being plated

What is the primary benefit of brush electroplating over tank plating?

• All of the above

• Low plating solution volume requirements

• Low or no masking requirements

• Portability

What is the process used in electroplating called?

• Electroforming

• Electroless deposition

• Electrolysis

• Electrodeposition

What is the purpose of a 'strike' in the electroplating process?

• To increase the rate of plating

• To remove impurities from the metal

• To create a foundation for subsequent plating processes

• To form a very thick plating

What is the major benefit of electroless deposition over electroplating?

• Thicker plates of metal

• No need for a reducing agent

• Faster process

• Lower cost of production

What is the most common industrial test for cleanliness in electroplating?

• Hot alkaline detergent cleaning

• Electro-cleaning

• Acid treatment

• Waterbreak test