Electrolysis Quiz

What is the primary purpose of electrolysis?

• To create new compounds

• To combine elements

• To split compounds using electricity

• To dissolve metals

What is an electrolyte?

• A type of battery

• A liquid or solution containing free-moving ions

• A metal electrode

• A solid conductor

What is the role of the anode in electrolysis?

• It is a type of electrolyte

• It attracts negative ions

• It attracts positive ions

• It is a power supply

Why do we need to melt lead bromide for electrolysis?

• To increase its conductivity

• To change its chemical composition

• To allow the ions to move freely

• To make it soluble in water

What happens to bromide ions at the anode?

• They lose electrons and form bromine gas

• They gain electrons and form bromine gas

• They lose electrons and form lead

• They gain electrons and form lead

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

• Bromine gas

• Molten lead

• Copper sulfate

• Water

What type of reaction occurs at the anode?

• Reduction

• Oxidation

• Neutralization

• Precipitation

What happens to lead ions at the cathode?

• They gain two electrons and form pure lead

• They lose two electrons and form pure lead

• They gain one electron and form lead gas

• They lose one electron and form lead gas

What is the overall purpose of using electricity in electrolysis?

• To heat the electrolyte

• To convert ions back into their pure elemental forms

• To create new compounds

• To dissolve the electrodes

What will be covered in the next videos?

• Electrolysis of metal oxides and aqueous solutions

• Electrolysis of gases

• Electrolysis of organic compounds

• Electrolysis of non-metals