Discussion Forum



1)

Given ,$E^{0}_{Cl_{2}/Cl^{-}}$=1.36 V

  $E^{0}_{Cr^{3+}/Cr}=-0.74 V$

$E^{0}_{Cr_{2}O^{2-}_{7}/Cr^{3+}}=1.33 V$

$E^{0}_{MnO^{-}_{4}/Mn^{2+}}=1.51 V$

Among the following , the strongest reducing agent is


A) Cr

B) $Mn^{2+}$

C) $Cr^{3+}$

D) $Cl^{-}$

Answer:

Option A

Explanation:

The substance which has the lowest reduction potentials are stronger reducing agents. Therefore, Cr ( $E^{0}_{Cr^{3+}/Cr}=-0.74 V$ ) is the strongest reducing agent among the other given options.