Which Substance Acts as the Cathode in the Lead-Acid Automobile

question 1

Multiple Choice

Which substance acts as the cathode in the lead-acid automobile battery?
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Pb + PbO₂ + 4H⁺ + SO₄^{2 −} → 2PbSO₄ + 2H₂O

• A) Pb
• B) PbO₂
• C) 4H⁺
• D) SO₄^{2 −}
• E) H₂O

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Definitions:

Capitulating

The act of surrendering or yielding under specific conditions.

Overexpressing

Showing or articulating an emotion, thought, or feeling to an excessive or exaggerated degree.

Suppressing

The act of consciously holding back or restraining emotions, thoughts, or actions that are considered unacceptable or unwanted.

Behavior

The observable actions or reactions of an individual or group in response to external or internal stimuli.