Question

During discharging the change taking place at cathode in lead accumulator is:

विकल्प

• Pb_(s) is oxidized to $$\mathrm{Pb}{\phantom{A}}_{(\mathrm{aq}.)}^{2+}$$

• $$\mathrm{Pb}{\phantom{A}}_{(\mathrm{aq}.)}^{2+}$$ is oxidized to PbO_2(s)

• $$\mathrm{Pb}{\phantom{A}}_{(\mathrm{aq}.)}^{2+}$$ is reduced to Pb_(s)

• PbO_2(s) is reduced to $$\mathrm{Pb}{\phantom{A}}_{(\mathrm{aq}.)}^{2+}$$

Answer 1

PbO_2(s) is reduced to $$\mathrm{Pb}{\phantom{A}}_{(\mathrm{aq}.)}^{2+}$$