The standard reduction potential E^{\circ} for half-reactions are {\Zn} \rightarrow {\Zn}^{2+}+2 e^{-} ; E^{\circ}=+0.76 {\V} {\Fe} \rightarrow {\Fe}^{2+}+2 e^{-} ; E^{\circ}=+0.41 {\V} The EMF of the cell reaction {\Fe}^{2+}+ {\Zn} \rightarrow {\Zn}^{2+}+ {\Fe} \text{ is }

CGPET 2012 Solved Paper

Section: Chemistry

Question : 73 of 150

Marks: +1, -0

The standard reduction potential E∘ for half-reactions are
‌Zn⟶Zn2++2e−;E∘=+0.76V
‌Fe⟶Fe2++2e−;E∘=+0.41V
The EMF of the cell reaction
Fe2++Zn⟶Zn2++Fe‌ is ‌

+1.28V
−1.28V
+0.35V
−0.35V

Validate

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