Understanding Electrolysis

What is the primary purpose of electrolysis?

• To heat substances

• To mix ionic compounds

• To separate elements in insoluble ionic compounds

• To create ionic compounds

What role does the electrolyte play in electrolysis?

• It stores electrical energy

• It heats the solution

• It provides a medium for ions to move freely

• It acts as a solid conductor

Which electrode is known as the positive electrode in electrolysis?

• Battery

• Cathode

• Anode

• Electrolyte

Which of the following is not a component used in the setup for electrolysis?

• Electrolyte

• Filter

• Beaker

• Electrodes

What happens to bromide ions at the anode during electrolysis of molten lead bromide?

• They form lead

• They become neutral atoms

• They gain electrons

• They are reduced

What is the final product at the anode during the electrolysis of molten lead bromide?

• Pure lead

• Bromine gas

• Lead ions

• Electrons

What is formed at the cathode during the electrolysis of molten lead bromide?

• Lead bromide

• Electrons

• Bromine gas

• Pure lead

During electrolysis, what is the process called when bromide ions lose electrons?

• Electrification

• Oxidation

• Neutralization

• Reduction

How are electrons transferred in the process of electrolysis?

• From the anode to the cathode through the electrolyte

• From the cathode to the anode through the battery

• From the negative ions to the positive ions via the external circuit

• Directly between ions in the electrolyte

What is the outcome of electrolysis in terms of the ions in a compound?

• Ions are converted back into their pure elemental forms

• Ions are permanently dissolved

• Ions lose all their properties

• Ions are mixed to form new compounds