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
Anode $-\mathrm{PbSO}_{4}^{-}+2 \mathrm{e}^{-} \rightarrow \mathrm{Pb}+\mathrm{SO}_{4}^{2-}$

Cathode $-\mathrm{PbSO}_{4}+2 \mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{PbO}_{2}+4 \mathrm{H}^{+}+\mathrm{SO}_{4}^{2-}+2 \mathrm{e}^{-}$

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