Question

Which one among the following is the strongest reducing agent?
$Fe ^{2+}+2 e ^{-} \rightarrow Fe (-0.44\, V )$
$Ni ^{2+}+2 e ^{-} \rightarrow Ni (-0.25 \,V )$
$Sn ^{2+}+2 e ^{-} \rightarrow \operatorname{Sn}(-0.14\, V )$
$Fe ^{3+}+ e ^{-} \rightarrow Fe ^{2+}(+0.77\, V )$

• A. $Fe$
• B. $Fe ^{2+}$
• C. $Ni$
• D. $Sn$

Answer 1

Answer: (A)

The reduction potential of $Fe$ is very high, so it is a strongest reducing agent.