Question

For car battery which one is correct statement ?

• A. Cathode is Lead dioxide $(PbO_2)$ and anode is Lead $(Pb)$
• B. Cathode is Lead dioxide $(PbO_2)$ and anode is Copper $(Cu)$
• C. Cathode is Copper $(Cu)$ and anode is Lead dioxide $(PbO_2)$
• D. Cathode is Copper $(Cu)$ and anode is Lead $(Pb)$

Answer 1

Answer: (A)

Cathode is Lead dioxide $(PbO_2)$ and anode is Lead $(Pb)$

Answer 2

Car battery is a lead storage battery. In which cathode is made of $PbO _{2}$ and anode is made of Pb-plates. $PbO _{2}\left( Pb ^{4+}\right)$ reduce to $Pb ^{2+}$ at cathode, while Pb oxidise to $Pb ^{2+}$ at anode.