Arrange the following metals in increasing order of their reducing power.
[ Given : $E_{K^{+} / K}^{0}$ = -2.93 V , $E_{A g^{+} / A g}^{0}$ = +0.80V,
$E_{A l^{3 +} / A l}^{0}$ = -1.66 V , $E_{A u^{3 +} / A u}^{0}$ = +1.40 V,
$E_{L i^{+} / L i}^{0}$ = -3.05 V ]

Li < K < Al < Ag < Au

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Au < Ag < Al < K < Li

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K < Al < Au < Ag < Li

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Al < Ag < Au < Li < K

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Solution

The correct option is D Au < Ag < Al < K < Li
We know that, lower the standard electrode potential value, greater the reducing power. The standard electrode potential values are increasing in the order $L i (- 3.05 V), K (- 2.93 V), A l (- 1.66 V), A g (+ 0.80 V), A u (+ 1.40 V)$ .
Therefore, the increasing order of reducing power is as follows:
$A u < A g < A l < K < L i$ .

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Similar questions

Q. Arrange the following metals in increasing order of their reducing power [Given :

E_{K^{+} / k}^{0} = - 2.93 V, E_{A g}^{0} = + 0.80 V, E_{A l^{3 +} / A l}^{0} = - 1.66 V, E_{A u^{3 +} / A u}^{0} = + 1.40 V, E_{L i / L i}^{0} = - 3.05 V

]

Given the standard electrode potentials,

K⁺/K = −2.93V, Ag⁺/Ag = 0.80V,

Hg²⁺/Hg = 0.79V

Mg²⁺/Mg = −2.37 V, Cr³⁺/Cr = − 0.74V

Arrange these metals in their increasing order of reducing power.

Given the standard electrode potentials,
$K^{+} / K = - 2.93 V, A g^{+} / A g = 0.80 V, H g^{2 +} / H g$
$= 0.79 V$
$M g^{2 +} / M g = - 2.37 V . C r^{3 +} / C r = - 0.74 V$
Arrange these metals in their increasing order of reducing power.

Q. Arrange

A g, C r

and

H g

metals in the increasing order of reducing power. Given:

E_{A g^{+} / A g}^{\circ} = + 0.80 V

E_{C r^{3} / C r}^{\circ} = - 0.74 V

E_{H g^{3 +} / H g}^{\circ} = + 0.79 V

Q. Given the standard electrode potentials,

K^{+} / K = - 2.93 V A g^{+} / A g = 0.80 V H g^{2 +} / H g = 0.79 V M g^{2 +} / M g = - 2.73 V C r^{3 +} / C r = - 0.74 V

The increasing order of reducing power is:

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Arrange the following metals in increasing order of their reducing power.[ Given : E0K+/K = -2.93 V , E0Ag+/Ag = +0.80V,E0Al3+/Al = -1.66 V , E0Au3+/Au = +1.40 V, E0Li+/Li = -3.05 V ]

Arrange the following metals in increasing order of their reducing power.
[ Given : $E_{K^{+} / K}^{0}$ = -2.93 V , $E_{A g^{+} / A g}^{0}$ = +0.80V,
$E_{A l^{3 +} / A l}^{0}$ = -1.66 V , $E_{A u^{3 +} / A u}^{0}$ = +1.40 V,
$E_{L i^{+} / L i}^{0}$ = -3.05 V ]