Pb(IV)+ 2Cl- → Pb(II) + Cl2Pb(IV)+ O(-2) → Pb(II) + 0.5O2混合物中Pb(IV):Pb(II)= 1:2PbO(II);Pb3O4(2PbO·PbO2);PbO2(IV)A. 3:5 B. 4:8 = 1:2 C. 1:3 D. 3:3 = 1:1选B