electrochemistry

Question: Which of the following reactions occurs at the cathode during the charging of a lead storage battery

1) $P{{b}^{2+}}+2{{e}^{-}}\to Pb$

2) $P{{b}^{2+}}+SO_{4}^{2-}\to PbS{{O}_{4}}$

3) $Pb\to P{{b}^{2+}}+2{{e}^{-}}$

4) $PbS{{O}_{4}}+2{{H}_{2}}O\to 2Pb{{O}_{2}}+4SO_{4}^{2-}+2{{e}^{-}}$

Solution:

Explanation: No Explanation

Electrochemical cells

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