When lead storage battery is charged - Vidyadip

MCQ

When lead storage battery is charged

A
Lead dioxide dissolves
✓
Sulphuric acid is regenerated
C
The lead electrode becomes coated with lead sulphate
D
The amount of sulphuric acid decreases

✓

Answer

Correct option: B.

Sulphuric acid is regenerated

b
(b)During charging of a lead storage battery, the reaction at the anode and cathode are

Anode: $PbS{O_4} + 2{e^ - } \to Pb + SO_4^{2 - }$

Cathode: $PbS{O_4} + 2{H_2}O \to Pb{O_2} + 4{H^ + } + SO_4^{2 - } + 2{e^ - }$

In both the reactions ${H_2}S{O_4}$ is regenerated.

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