Consider the following E o values : E _ Fe ^ 3+ / Fe ^ 2+ ^ 0 =+0.77 ~V E _ Sn ^ 2+ / Sn…
Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry
Consider the following Eo values :
\(\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.77 \mathrm{~V}\)
\(\mathrm{E}_{\mathrm{Sn}^{2+} / \mathrm{Sn}}^{\mathrm{o}}=-0.14 \mathrm{~V}\)
Under standard conditions the potential for the reaction
Sn(s) + 2Fe3+ (aq) → 2Fe2+ (aq) + Sn2+ (aq) is
\(\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.77 \mathrm{~V}\)
\(\mathrm{E}_{\mathrm{Sn}^{2+} / \mathrm{Sn}}^{\mathrm{o}}=-0.14 \mathrm{~V}\)
Under standard conditions the potential for the reaction
Sn(s) + 2Fe3+ (aq) → 2Fe2+ (aq) + Sn2+ (aq) is
- 1.68 V
- 1.40 V
- 0.91 V
- 0.63 V
Answer
(C) 0.91 V
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