Electrolysis of Brine Quiz

What is the purpose of using carbon electrodes in the electrolysis of brine?

• To produce chlorine gas

• To increase the conductivity of the solution

• To produce hydrogen gas

• To prevent the electrodes from becoming part of the reaction

Which gas is formed at the anode during the electrolysis of brine?

• Nitrogen gas

• Chlorine gas

• Oxygen gas

• Hydrogen gas

What color does the chlorine gas turn blue litmus paper?

• Yellow

• Red

• Blue

• Green

What gas is given off at the cathode during the electrolysis of brine?

• Nitrogen gas

• Hydrogen gas

• Chlorine gas

• Oxygen gas

What is the product of the combination of positive sodium ions and negative hydroxide ions?

• Sodium chloride

• Sodium hydroxide

• Hydrochloric acid

• Chlorine gas

What is the main use of chlorine produced from the electrolysis of brine?

• Sterilizing water in the mains water supply

• Producing chloride salts

• Cleaning ovens

• Unblocking drains

What is the main use of sodium hydroxide produced from the electrolysis of brine?

• Sterilizing water in the mains water supply

• Producing chloride salts

• Cleaning ovens

• Unblocking drains

What is the overall result of the electrolysis of brine?

• Sodium chloride solution, water, and hydrogen gas

• Sodium chloride solution, water, and oxygen gas

• Sodium hydroxide solution, hydrogen gas, and chlorine gas

• Sodium hydroxide solution, hydrogen gas, and oxygen gas