Question

The lead-containing reactant(s) consumed during recharging of a lead-acid battery is/are ________. The lead-containing reactant(s) consumed during recharging of a lead-acid battery is/are ________. PbSO4 (s) only Pb (s) only PbO2 (s) only both PbO2 (s) and PbSO4 (s) both Pb (s) and PbO2 (s)

Answer 1

Answer:  The  lead-containing reactant(s) consumed during recharging of a lead-acid battery is $PbSO_4(s)$

Explanation:

In lead acid battery, the anode is made up of lead and undergoes oxidation during discharging and cathode is made up of lead oxide and acts as cathode during discharging. The electrolyte used is dilute $H_2SO_4$.

Charging:

Cathode : reduction : $PbSO_4(s)+2e^{-}\rightarrow Pb+SO_4^{2-}$

Anode: oxidation : $PbSO_4+2H_2O\rightarrow PbO_2+SO_4^{2-}+4H^++2e^-$

Overall reaction : $2PbSO_4+2H_2O\rightarrow Pb+PbO_2+2H_2SO_4$

The  lead-containing reactant(s) consumed during recharging of a lead-acid battery is $PbSO_4(s)$

Answer 2

Answer:

PbSO4 (s) only

Explanation: