A substance that is reduced as a lead-acid storage battery generates an electric current is
A)Pb.
B)PbSO₄.
C)PbO₂.
D)H₂SO₄.

Question

Quizplus · Accepted Answer

When a lead-acid storage battery generates electric current, PbO₂ in the positive electrode is reduced to PbSO₄ and H₂SO₄ in the electrolyte is oxidized to H₂O and SO₄²⁻ in the negative electrode. Therefore, PbO₂ is the substance that is reduced during the generation of electric current in a lead-acid storage battery.

A Substance That Is Reduced as a Lead-Acid Storage Battery