A.0.267V B.-0.41V C.-0.267V D.-0.016V
的EΘ為0.476V,EΘ(Sn4+/Sn2+)=0.154V,則EΘ(HgCl2/Hg2Cl2)=()
A.0.322V B.0.784V C.0.798V D.0.630V
A. B. C. D.