In the reaction Pa + 10 Cl2(g) 4PCI5(5) The reducing agent is: Select one: O a. Cl2 O b. PCI5 C. P O d. Cl Indicate the reaction(s) where the Pb(IV)oxide is reduced: I) PbO2 + 4HE PF4 + 2H20 II) PbO2 + Cu Pbo + Cuo III) PbO2 + 2H2 Pb + 2H2O Select one: O a. I O b. II O c. II O d. I+II O e. Il+III