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Secondary Cells

When lead sto...

Question

When lead storage battery is charged:

A

lead dioxide dissolves

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B

sulphuric acid is regenerated

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C

lead electrode becomes coated with lead sulphate

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D

the concentration of sulphuric acid decreases

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Solution

The correct option is B sulphuric acid is regenerated
During charging of lead storage battery, sulphuric acid is regenerated. The net cell reaction during charging is $P b S O_{4} + 2 H_{2} O \to P b + P b O_{2} + 2 H_{2} {S O}_{4}$
Hence, option B is correct.

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