Standard reduction potentials for, Li+/Li; Zn2+/Zn; H+/H2 and Ag+/Ag are -3.05, -0.762, 0.00 and +0.80 V respectively. Which of the following has highest reducing capacity?

Question

Standard reduction potentials for, Li+/Li; Zn2+/Zn; H+/H2 and Ag+/Ag are -3.05, -0.762, 0.00 and +0.80 V respectively. Which of the following has highest reducing capacity? (A)  Ag  (B)  H2  (C)  Zn  (D)  Li

Tardigrade Admin · Accepted Answer

More negative is the value of standard reduction potential, higher will be the reducing power. ∴ Li2+/Li has the highest reducing power.

Q. Standard reduction potentials for, $L i^{+} / L i;$ $Z n^{2 +} / Z n;$ $H^{+} / H_{2}$ and $A g^{+} / A g$ are $- 3.05,$ $- 0.762,$ $0.00$ and $+ 0.80$ V respectively. Which of the following has highest reducing capacity?

$A g$

$H_{2}$

$Z n$

$L i$

More negative is the value of standard reduction potential, higher will be the reducing power. $∴$ $L i^{2 +} / L i$ has the highest reducing power.

Q. Standard reduction potentials for, Li+/Li; Zn2+/Zn; H+/H2​ and Ag+/Ag are −3.05, −0.762, 0.00 and +0.80 V respectively. Which of the following has highest reducing capacity?

Ag

H2​

Zn

Li