MCQ
Which of the following complex represent maximum stability ?
- ✓$[Co(CN)_6]^{3-}$
- B$[Co(H_2O)_6]^{3+}$
- C$[Co(CN)_6]^{4-}$
- D$[Co(C_2O_4)_3]^{3-}$
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$Fe^{3+} + e \to Fe^{2+} ;$ $E^o = 0.771\, volts$
$I_2 + 2e\to 2I^-;$ $E^o = 0.536\, volts$
$E^o$ cell for the cell reaction
$2Fe^{3+} + 2I^-\to 2Fe^{2+} + I_2$ is

(Where the constant $B$ is positive)