First slide

Batteries

Question

When lead storage battery is charged

Easy

A

PbO₂ dissolves
B

The lead electrode becomes coated in the lead sulphate
C

H₂SO₄ is regenerated
D

The amount of acid decreases

Solution

When LSB is charged
$2PbS{O_4} + 2{H_2}O\xrightarrow{{2F}}Pb + Pb{O_2} + 2{H_2}S{O_4}$
I) H₂SO₄is generated.
II) Specific gravity of H₂SO₄increases.
III) Voltage increases.
IV) PbSO₄ is consumed.

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