Electrolysis of Molten Salt and Water

What is the name of the positive electrode in electrolytic cell?

• Cathode

• Anode

The negatively charged ions (anions) are attracted to the ________.

• anode

• cathode

What is the name given to the solution that is being electrolysed?

• Salt solution
• Electric solution
• Mineral solution
• Electrolyte

___________ electrode is an inert electrode.

• Copper

• Iron

• Carbon

• Zinc

What particle carries the charge in the wire?

• electron
• proton
• ion
• atom

What particle carries the charge in the electrolyte?

• electron
• proton
• ion
• atom

How could you extract sodium from molten sodium chloride?

• reduction by carbon
• electrolysis
• decomposition
• oxidation

What ions are present in molten aluminium oxide, Al₂O₃?

• Al³⁺, O^2-, H⁺, OH^-

• Al³⁺, O^2-

• Al³⁺, OH^-

What is the half equation to show what happens to Cl ions at the anode of a molten NaCl electrolytic cell?

• Cl^- (aq) --> Cl (g) + e-   

• 2Cl^- (aq) --> Cl₂ (g) + 2e-   

• Cl₂ (g) + 2e^- --> 2Cl^- (aq)

• Cl₂ (g) + 2e^-  _-->  2Cl^- (aq)

What is the product formed at the cathode during the electrolysis of molten magnesium fluoride, MgF₂?

• Magnesium

• Hydrogen

• Fluorine

• Oxygen