A solution contains Fe^{2+},Fe^{3+} and I^{-} | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The standard reduction potential $(E^{\circ})$ for $Fe^{3+}/Fe^{2+}$ is $+0.77 \ V$ and for $I_2/2I^{-}$ is $+0.536 \ V$. Since the reduction pote

Vedclass · Accepted Answer

$I^{-}$ will be oxidised to $I_2$

Vedclass · Answer

(C) The standard reduction potential $(E^{\circ})$ for $Fe^{3+}/Fe^{2+}$ is $+0.77 \ V$ and for $I_2/2I^{-}$ is $+0.536 \ V$. Since the reduction potential of $Fe^{3+}/Fe^{2+}$ is higher than that of $I_2/2I^{-}$,$Fe^{3+}$ has a greater tendency to get reduced to $Fe^{2+}$. Conversely,$I^{-}$ has a greater tendency to get oxidised to $I_2$. Therefore,the spontaneous reaction is $2Fe^{3+} + 2I^{-} \rightarrow 2Fe^{2+} + I_2$. Thus,$I^{-}$ will be oxidised to $I_2$.

$A$ solution contains $Fe^{2+}$,$Fe^{3+}$ and $I^{-}$ ions. This solution was treated with iodine at $35^{\circ}C$. $E^{\circ}$ for $Fe^{3+}/Fe^{2+}$ is $+0.77 \ V$ and $E^{\circ}$ for $I_2/2I^{-}$ is $+0.536 \ V$. The favourable redox reaction is

Similar Questions

Fluorine is the best oxidising agent because it has

If the standard reduction potentials of $Zn$, $Ni$, and $Fe$ are $-0.76 \text{ V}$, $-0.23 \text{ V}$, and $-0.44 \text{ V}$ respectively, determine the electrodes $X$ and $Y$ for the reaction $X(s) + Y^{+2}(aq) \rightarrow X^{+2}(aq) + Y(s)$ to be spontaneous.

Can $E_{cell}^o$ or $\Delta_r G^o$ for a cell reaction ever be equal to zero?

Arrange the following metals in the order in which they displace each other from the solution of their salts: $Al$,$Cu$,$Fe$,$Mg$,and $Zn$.

If the reduction potential is more,then

Vedclass Test Series

Exam Paper Generator

Online Exam Module