Electrolysis of Concentrated Copper Chloride Quiz

What ions are present in the electrolysis of concentrated copper chloride?

• Cu2+ and Cl-

• Na+ and Cl-

• H+ and OH-

• Cu2+ and Na+

Which ions are attracted to the cathode during the electrolysis of copper chloride?

• H+ and OH-

• Cl- and OH-

• Na+ and Cl-

• Cu2+ and H+

What is formed when Cu2+ is reduced at the cathode?

• Water

• Chlorine gas

• Hydrogen gas

• Cu metal

Which factor determines which ion gets reduced at the cathode?

• Concentration

• Reactivity

• Temperature

• Pressure

According to the reactivity series, which element is less reactive: hydrogen or copper?

• Hydrogen

• Copper

• Both are equally reactive

• Neither is reactive

What happens at the anode during the electrolysis of concentrated copper chloride?

• Cu2+ is reduced

• Cl- is oxidized

• H+ is oxidized

• OH- is reduced

Which ion is preferentially oxidized at the anode in a concentrated solution?

• H+

• Cu2+

• Cl-

• OH-

What is the color of the gas evolved at the anode during the electrolysis of concentrated copper chloride?

• Orange

• Pale green

• Colorless

• Blue

Which ions are difficult to oxidize and should not be included in oxidation equations?

• Hydroxide and hydrogen ions

• Copper and sodium ions

• Sulfate and nitrate ions

• Chloride and bromide ions

What is the main factor affecting ion oxidation at the anode?

• Reactivity

• Concentration

• Temperature

• Pressure