Electrolysis of Sulfuric Acid Quiz

What ions are formed when sulfuric acid is dissolved in water?

• Hydrogen and sulfate ions

• Sodium and chloride ions

• Potassium and nitrate ions

• Calcium and carbonate ions

Which ion is present at the cathode during the electrolysis of sulfuric acid?

• Oxygen ion

• Hydrogen ion

• Hydroxide ion

• Sulfate ion

What is the observation when hydrogen gas is released at the cathode?

• A colored gas is released

• A solid precipitate forms

• A colorless gas bubbles off

• A liquid is produced

What test can confirm the presence of hydrogen gas?

• It turns limewater milky

• It extinguishes a glowing splint

• It produces a pop sound with a lighted splint

• It changes the color of litmus paper

Which ions are present at the anode during the electrolysis of sulfuric acid?

• Sodium and potassium ions

• Chloride and nitrate ions

• Sulfate and hydroxide ions

• Hydrogen and hydroxide ions

Which ion is selected to be discharged at the anode?

• Chloride ion

• Hydrogen ion

• Hydroxide ion

• Sulfate ion

What are the products formed when hydroxide ions are discharged?

• Oxygen and water

• Chlorine and water

• Hydrogen and water

• Sulfate and oxygen

What is the observation when oxygen gas is released at the anode?

• A colored gas is released

• A liquid is produced

• A colorless gas bubbles off

• A solid precipitate forms

What test can confirm the presence of oxygen gas?

• It produces a pop sound with a lighted splint

• It extinguishes a glowing splint

• It relights a glowing splint

• It turns limewater milky

How many hydroxide ions are needed to form one oxygen molecule?

• Five

• Two

• Three

• Four