$I_2 + 2e^{-} \to 2I^{-}$; $E^{o} = 0.54 \ V$
$Cl_2 + 2e^{-} \to 2Cl^{-}$; $E^{o} = 1.36 \ V$
$Mn^{3+} + e^{-} \to Mn^{2+}$; $E^{o} = 1.50 \ V$
$Fe^{3+} + e^{-} \to Fe^{2+}$; $E^{o} = 0.77 \ V$
Which of the following is a correct statement?

  • A
    $Fe^{2+}$ is oxidised by iodine
  • B
    Iodide ion is oxidised by chlorine
  • C
    $Mn^{2+}$ is oxidised by chlorine
  • D
    Chloride ion is oxidised by $O_2$

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$K, Ca$ and $Li$ metals may be arranged in the decreasing order of their standard electrode potentials as

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