World's biggest Electrolytic Quiz (It's a shocker!)

What is the main purpose of electrolysis?

• To convert chemical energy into electrical energy

• To produce a spontaneous chemical reaction

• To convert electrical energy into chemical potential energy

• To recharge non-rechargeable batteries

What type of cells convert chemical energy to electrical energy?

• Rechargeable cells

• Electrolytic cells

• Galvanic cells

• Spontaneous cells

How does a rechargeable battery 'recharge'?

• By converting electrical energy directly into kinetic energy

• By using electrolysis to reverse the chemical reaction

• By spontaneously generating electrical energy

• By converting thermal energy into electrical energy

What is a potential danger when passing an electric current through a sodium chloride solution during electrolysis?

• The reaction is too spontaneous to control

• The products could be very dangerous

• The sodium chloride solution becomes a rechargeable battery

• The electrical energy is not converted efficiently

What is the main industrial application of electrolysis mentioned in the text?

• Purification of water

• Extraction of metals from their ores

• Generation of electricity

• Production of chlorine gas

Which of the following minerals is associated with copper as per Table 14.1.1?

• Hematite, Fe2O3

• Chalcopyrite, CuFeS2

• Argentite, Ag2S

• Galena, PbS

What is the role of the power source in an electrolytic cell?

• It decreases the concentration of the solution.

• It separates the anions and cations.

• It supplies energy to push electrons to the cathode.

• It converts mechanical energy into electrical energy.

Which statement correctly describes the electron flow in both galvanic and electrolytic cells?

• Electrons flow from anode to cathode in both cell types.

• Electrons flow from cathode to anode in both cell types.

• Electrons flow from anode to cathode in galvanic cells and from cathode to anode in electrolytic cells.

• Electrons flow from cathode to anode in galvanic cells and from anode to cathode in electrolytic cells.

Which of the following is not a correct pair of metal and its mineral form as per the provided table?

• Copper - Malachite, Cu2(CO3)(OH)2

• Iron - Hematite, Fe2O3

• Zinc - Sphalerite, Zn(FeS)

• Aluminum - Bauxite, Al2O3·3H2O

What is the concentration of sulfuric acid used in the experiment?

• 0.5 mol L^-1

• 1 mol L^-1

• 1.5 mol L^-1

• 2 mol L^-1