Electrolysis Basics

What is electrolysis?

• Electrolysis is the process of using light to drive a chemical reaction.

• Electrolysis is the process of using heat to drive a chemical reaction.

• Electrolysis is the process of using a magnetic field to drive a chemical reaction.

• Electrolysis is the process of using an electric current to drive a non-spontaneous chemical reaction.

What are the two electrodes used in electrolysis called?

• anode and cathode

• cathode and anode

• positive and negative

• north and south

Which process occurs at the anode during electrolysis?

• Reduction

• Oxidation

• Condensation

• Evaporation

Which process occurs at the cathode during electrolysis?

• Condensation

• Reduction

• Evaporation

• Oxidation

What is the purpose of adding an electrolyte to the solution during electrolysis?

• Facilitates the flow of electric current

• Causes the solution to evaporate faster

• Reduces the conductivity of the solution

• Increases the temperature of the solution

What is the chemical equation for the electrolysis of water?

• H2O(l) -> H2(g) + O2(g)

• 2H2O(l) -> 2H2(g) + O2(g)

• 2H2O(l) -> H2(g) + 2O(g)

• H2O(l) -> H2(g) + O(g)

What is the product of the electrolysis of molten sodium chloride?

• Sodium hydroxide and hydrogen gas

• Sodium metal and chlorine gas

• Sodium hydroxide and chlorine gas

• Sodium chloride and water

What is the product of the electrolysis of aqueous copper(II) sulfate?

• Copper metal (Cu)

• Copper oxide (CuO)

• Sulfuric acid (H2SO4)

• Oxygen gas (O2)

What is the role of electrons in the process of electrolysis?

• Electrons are released as a byproduct

• Electrons flow through the external circuit, balancing charge and facilitating redox reactions.

• Electrons are consumed during the process

• Electrons have no role in electrolysis

How is the amount of substance produced during electrolysis related to the current and time?

• The amount of substance produced during electrolysis is only related to the current, not time.

• The amount of substance produced during electrolysis is not affected by either current or time.

• The amount of substance produced during electrolysis is directly proportional to the current and time.

• The amount of substance produced during electrolysis is inversely proportional to the current and time.