GivenECl2-Cl- - 1-36 V- ECr3-Cr-0-74 VECr2O72-Cr3- - 1-33 V- EMnO4-Mn2-1-51 VAmong the following- the strongest reducing agent is-

Reduction potential of E^∘_Cr^3+/Cr= 0.74 V So, E_Cr/Cr^3+=+0.74 V ∴ Cr would be strongest reducing agent. ...

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Electrochemical Series

GivenECl2/Cl-...

Question

Given

$E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r} = - 0.74 V$

$E_{C r_{2} O_{7}^{2 -} / C r^{3 +}} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V$

Among the following, the strongest reducing agent is:

M n^{2 +}

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C r^{3 +}

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C l^{-}

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C r

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Solution

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E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r} = - 0.74 V

E_{C r_{2} O_{7}^{2 -} / C r^{3 +}} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V

E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{o} = 1.33

E_{C l_{2} / C l^{-}}^{o} = 1.36

E_{M n O_{4}^{-} / M n^{2 +}}^{o} = 1.51

E_{C r^{3 +} / C r}^{o} = - 0.74

E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r}^{\circ} = - 0.74 V

E_{C r_{2} / O_{7}^{2 -} / C r^{3 +}}^{\circ} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V

E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r}^{\circ} = - 0.74 V E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{\circ} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V

E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r}^{\circ} = - 0.74 V E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{\circ} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V

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