Electrolytic Cell

What is produced in the electrolysis of brine?

• chlorine gas, hydrogen gas, and sodium hydroxide

• Chlorine gas and hydrogen gas only

• Chlorine gas and sodium only

• Chlorine gas and oxygen gas only

Which of the following is true about an electrolytic cell?

• It changes electrical energy into chemical energy.

• It uses an electric current to make a non-spontaneous reaction

• It is the type of cell used in electroplating.

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• All of the above.

What reaction occurs when a current is applied to two electrodes immersed in pure  water?

• No reaction occurs in the cell.

• Water is produced at both electrodes.

• Hydrogen is produced at the anode and oxygen at the cathode.

• Hydrogen is produced at the cathode and oxygen at the anode.

Which of the following is the name of a process in which electrical energy causes a chemical

     reaction?

• Electrolysis

• Electronation

• Oxidation

• Hydrolysis

In electroplating, the object to be electroplated is placed          __________

• at the anode

• at the cathode

• at either the anode or cathode

• in between the anode and the cathode

  Identify the products formed in the net reaction of the electrolysis of water

• liquid hydrogen and oxygen gas      

• liquid oxygen and hydrogen gas  

• hydrogen gas and oxygen gas

• aqueous hydrogen ion and hydroxyl ion

Use the diagram below to choose which statement is not correct.

• Silver would stick to the spoon because it is a highly reactive metal.

• The electrolyte would be a silver salt dissolved in water.

• The metal electrode would be made of silver.

• The spoon would be connected to the negative terminal of the power source.

______________ is a process of deposition of a thin layer of metal on an object in an electrolytic cell.

 

• Electroplating

• Electrorefining

• Oxidation

•   Electronation

________________ produces sodium metal and chlorine gas from the electrolysis of molten sodium chloride.

• The Hall-Heroult process

•   

  Electroforming

• Electrowinning

•   The Down cell

By convention, which electrodes are labeled as the positive electrodes in electrochemical cells?

 

• Cathode in electrolytic cells, anode in voltaic cells 

• Anode in electrolytic cells, cathode in voltaic cells  

• Cathode in both types of cells

• Anode in both types of cells