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Which is the active material present on the negative plate in a lead-acid battery?

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in Automotive Engine Design by (137k points)
Which is the active material present on the negative plate in a lead-acid battery?

(a) Lead dioxide

(b) Lead peroxide

(c) Spongy lead

(d) Water

I had been asked this question in exam.

The doubt is from Lead-Acid Battery in portion Storage Batteries of Automotive Engine Design

1 Answer

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The correct answer is (c) Spongy lead

To elaborate: The positive and negative electrodes of a lead-acid battery are immersed in dilute sulphuric acid. On the positive plate, we have lead peroxide and on the negative plate, the active material is spongy lead.

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