Given- ECl2- Cl- - 1-36 V- ECr3- Cr- - -0-74 V- ECr2- O72- Cr3- - 1-33 V- EMnO4- Mn2- - 1-51 V-Among the following the strongest reducing agent is-

The correct option is A Cr If E ^∘ #160; (oxidation) gt;0 , then the compound will get easily oxidised and will be a strong reducing agent. Greate ...

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Standard XII

Chemistry

EMF

Given, ECl2/...

Question

Given,

$E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r}^{\circ} = - 0.74 V$ ,
$E_{C r_{2} / O_{7}^{2 -} / C r^{3 +}}^{\circ} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V$ .
Among the following the strongest reducing agent is:

C r

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M n^{2 +}

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C r^{3 +}

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C l^{-}

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Solution

The correct option is A $C r$
If $E^{\circ} (o x i d a t i o n) > 0$ , then the compound will get easily oxidised and will be a strong reducing agent. Greater the positive value of $E^{\circ} (o x i d a t i o n)$ , stronger will be it as a reducing agent.
$E_{C r / C r^{13}}^{\circ} = 0.74$ is the only positive oxidation emf hence $C r$ is the strongest reducing agent.

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Similar questions

Q. 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:

Q. Given:

E_{{C l}_{2} / {C l}^{-}} = 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 +}} = 1.51 V

,
Among the follwong the strongest reducing agent is:

Q. Using the data given find out the strongest reducing agent.

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

Q. 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:

Q. Given

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

Among the following, the strongest reducing agent is

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Given,E∘Cl2/Cl−=1.36 V,E∘Cr3+/Cr=−0.74 V,E∘Cr2/O2−7/Cr3+=1.33 V,E∘MnO−4/Mn2+=1.51 V.Among the following the strongest reducing agent is:

Given,

$E_{C l_{2} / C l^{-}}^{\circ} = 1.36 V, E_{C r^{3 +} / C r}^{\circ} = - 0.74 V$ ,
$E_{C r_{2} / O_{7}^{2 -} / C r^{3 +}}^{\circ} = 1.33 V, E_{M n O_{4}^{-} / M n^{2 +}}^{\circ} = 1.51 V$ .
Among the following the strongest reducing agent is: