Zinc–Air Battery Quiz

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Test your knowledge of zinc–air chemistry

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NALINI PRANAYA

India

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Froggy Jumps Zinc–Air Battery QuizVersión en línea Test your knowledge of zinc–air chemistry por NALINI PRANAYA 1 What is the anode material in a zinc–air battery? a Graphite b Copper (Cu) c Zinc (Zn) 2 Which substance acts as the cathode in this battery? a Pure zinc plate b Porous carbon electrode allowing oxygen c Solid platinum rod 3 What electrolyte is commonly used in zinc–air batteries? a Distilled water b Alkaline solution like potassium hydroxide (KOH) c Sulfuric acid (H2SO4) 4 What enters the battery through the air inlet? a Nitrogen from air b Oxygen from the atmosphere c Carbon dioxide from air 5 What is formed at the anode during operation? a Zinc hydroxide (Zn(OH)2) b Zinc sulfate (ZnSO4) c Zinc oxide (ZnO) 6 What type of reaction causes electrons to flow to the external circuit? a Neutralization reaction b Oxidation of zinc releasing electrons c Reduction of oxygen consuming electrons 7 What happens at the cathode during operation? a Oxygen gains electrons and forms hydroxide ions b Oxygen loses electrons c Zinc plates are reduced 8 What is the overall chemical equation? a Zn + H2 -> ZnH2 b ZnO + O2 -> Zn c Zn + O2 -> ZnO 9 Which of the following is a key advantage of zinc–air batteries? a Low energy density b High energy density c Heavy weight 10 Which statement about zinc–air batteries is true? a They are non-recyclable b They rely on scarce rare metals c They use abundant and environmentally friendly materials

Froggy Jumps

Zinc–Air Battery QuizVersión en línea

Test your knowledge of zinc–air chemistry

por NALINI PRANAYA

What is the anode material in a zinc–air battery?

Graphite

Copper (Cu)

Zinc (Zn)

Which substance acts as the cathode in this battery?

Pure zinc plate

Porous carbon electrode allowing oxygen

Solid platinum rod

What electrolyte is commonly used in zinc–air batteries?

Distilled water

Alkaline solution like potassium hydroxide (KOH)

Sulfuric acid (H2SO4)

What enters the battery through the air inlet?

Nitrogen from air

Oxygen from the atmosphere

Carbon dioxide from air

What is formed at the anode during operation?

Zinc hydroxide (Zn(OH)2)

Zinc sulfate (ZnSO4)

Zinc oxide (ZnO)

What type of reaction causes electrons to flow to the external circuit?

Neutralization reaction

Oxidation of zinc releasing electrons

Reduction of oxygen consuming electrons

What happens at the cathode during operation?

Oxygen gains electrons and forms hydroxide ions

Oxygen loses electrons

Zinc plates are reduced

What is the overall chemical equation?

Zn + H2 -> ZnH2

ZnO + O2 -> Zn

Zn + O2 -> ZnO

Which of the following is a key advantage of zinc–air batteries?

Low energy density

High energy density

Heavy weight

Which statement about zinc–air batteries is true?

They are non-recyclable

They rely on scarce rare metals

They use abundant and environmentally friendly materials

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Zinc–Air Battery Quiz

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Creada por

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Zinc–Air Battery QuizVersión en línea

por NALINI PRANAYA

What is the anode material in a zinc–air battery?

Which substance acts as the cathode in this battery?

What electrolyte is commonly used in zinc–air batteries?

What enters the battery through the air inlet?

What is formed at the anode during operation?

What type of reaction causes electrons to flow to the external circuit?

What happens at the cathode during operation?

What is the overall chemical equation?

Which of the following is a key advantage of zinc–air batteries?

Which statement about zinc–air batteries is true?

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