In: Chemistry
Which of the following Cations is the best oxidizing agent and which is the worst?
a) Pb+2
b) Cr+3
c) Fe+2
d) Sn+2
Eo (Pb2+/Pb) = -0.126 V
Eo (Cr3+|Cr) = -0.74 V
Eo (Fe2+/Fe) = -0.44 V
Eo (Sn2+/Sn) = -0.13 V
greater Eo value means good oxidising agent
Eo value is largest for Pb. SO Pb2+ is beat oxidising
agent
similarly worst is Cr3+