Which of the following component is formed on the positive plate after the discharged reaction in a lead-acid battery?(a) Sulphuric acid(b) Lead peroxide(c) Lead sulphate(d) Spongy leadI got this question at a job interview.This interesting question is from Lead-Acid Battery topic in division Storage Batteries of Automotive Engine Design

Which of the following component is formed on the positive plate after

1.	Which of the following component is formed on the positive plate after the discharged reaction in a lead-acid battery?(a) Sulphuric acid(b) Lead peroxide(c) Lead sulphate(d) Spongy leadI got this question at a job interview.This interesting question is from Lead-Acid Battery topic in division Storage Batteries of Automotive Engine Design
Answer» RIGHT choice is (C) Lead sulphate The best I can explain: During the process of discharge the chemical reactions forms lead sulphate on both the positive and negative PLATE thereby liberating WATER. The specific gravity of the electrolyte is lowered. The specific gravity is a good indication of the state of charge of a battery.

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