1.

When a lead storage battery is discharged :

Answer»

`SO_2` is evolved
lead SULPHATE is produced at both electrodes
sulphuric acid is consumed
water is formed.

SOLUTION :at anode : ` Pb_s + So_(4(aq))^(-2) + 4H^(+) + 2e^(-) to PbSo_(4(s)) + 2H_(2(l)o)`
overall REACTION : `Pb_s + Pbo_2 + 2H_2SO_(4(aq)) underset("Charging")overset("working")iff 2PbSo_(4(s)) + 2H_(2(l)o)`


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