9.2/R3.2.8 Electrolysis of Molten Sodium Chloride [SL IB Chemist

What is the purpose of melting solid sodium chloride before electrolysis?

• To make it conduct electricity

• To make it easier to handle

• To increase the reaction rate

• To prevent the formation of gases

What is the role of the battery in electrolysis?

• To attract electrons to the anode

• To repel electrons from the cathode

• To push electrons towards the negative electrode

• To prevent the flow of electrons

What is reduction?

• Loss of electrons

• Gain of electrons

• Gaining oxygen

• Loss of Hydrogen

What is the positive electrode called?

• Anode

• Cathode

• Electrolyte

• Ion

What is the product of the oxidation of chloride ions?

• Sodium

• Chlorine gas

• Liquid bromide

• Lead

What are the charge carriers in the wires?

• Protons

• Neutrons

• Electrons

• Ions

What are the charge carriers in the electrolyte?

• Protons

• Neutrons

• Electrons

• Ions

What happens when the battery is switched in the wrong direction?

• The reaction rate increases

• The electrolyte becomes solid

• The cathode becomes positive

• The circuit is incomplete

What is the state of bromide ions during electrolysis?

• Gas

• Liquid

• Solid

• Plasma

What is the state of lead during electrolysis?

• Gas

• Liquid

• Solid

• Plasma