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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Zinc–Air Battery Quiz


Froggy Jumps Zinc–Air Battery QuizVersion en ligne Test your knowledge of zinc–air chemistry par 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

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Zinc–Air Battery Quiz

Froggy Jumps

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Zinc–Air Battery QuizVersion en ligne

par 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?