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Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox titration. Some half-cell reactions and their standard potentials are given below:
$$MnO_{4}^{-}(aq)+8H^{+}(aq)+5e^{-}\rightarrow Mn^{2+}(aq)+4H_{2}O(l);$$ $$E^{\circ}= 1.51V$$
$$Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)+6e^{-}\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l);$$ $$E^{\circ}= 1.38V$$
$$Fe^{3+}(aq)+e^{-}\rightarrow Fe^{2+}(aq);$$ $$E^{\circ}= 0.77V$$
$$Cl_{2}(g)+2e^{-}\rightarrow 2Cl^{-}(aq);$$ $$E^{\circ}= 1.40V$$
Identify the only incorrect statement regarding the quantitative estimation of aqueous $$Fe(NO_{3})_{2}$$

A
$$Cr_{2}O_{7}^{2-}$$ can be used in aqueous $$H_{2}SO_{4}$$
B
$$Cr_{2}O_{7}^{2-}$$ can be used in aqueous $$HCl$$
C
$$MnO_{4}^{-}$$ can be used in aqueous $$HCl$$
D
$$MnO_{4}^{-}$$ can be used in aqueous $$H_{2}SO_{4}$$
Solution
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Correct option is A. $$MnO_{4}^{-}$$ can be used in aqueous $$HCl$$

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Similar Questions
Q1
Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox titrations. Some half cell reactions and their standard potentials are given below:
MnO4(aq.)+8H+(aq.)+5eMn2+(aq.)+4H2O(l);Eo=1.51V
Cr2O27(aq.)+14H+(aq.)+6e2Cr3+(aq.)+7H2O(l);Eo=1.38V
Fe3+(aq.)+eFe2+(aq.);Eo=0.77V
Cl2(g)+2e2Cl(aq.);Eo=1.40V
Identify the only incorrect statement regarding the quantitative estimation of aqueous Fe(NO3)2.
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Q2
Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox titration. Some half cell reactions and their standard potentials are given below.

Mn4(aq)+8H+(aq)+5eMn2+(aq)+4H2O(l);E=1.51V
Cr2O27(aq)+14H++6e2Cr3+(aq)+7H2O(l);E=138V
Fe3+(aq)+eFe2+(aq);E=0.77V
Cl2(g)+2e2Cl(aq);E=1.40V

Identify the incorrect statement regarding the quantitative estimation of gaseous Fe(NO3)2.

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Q3
Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox titration. Some half-cell reactions and their standard potentials are given below:
MnO4(aq.)+8H+(aq.)+5eMn2+(aq.)+4H2O(l);E=1.51 volt
Cr2O27(aq.)+14H+(aq.)+6e2Cr3+(aq.)+7H2O(l)E=1.38 volt
Fe3+(aq.)+eFe2+(aq.);E=0.77 volt
Cl2(g)+2e2Cl(aq.);E=1.40 volt
Identity the only incorrect statement regarding the quantitative estimation of aqueous Fe(NO3)2.
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Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox Titration. Some half – cell reactions and their standard potential are given below:
MnO4(aq)+8H+(aq)+5eMn2+(aq)+4H2O(I); E=1.51 V
Cr2 O27 (aq)+14H+(aq)+6e2Cr3+(aq)+7H2O(I); E=1.38V
Fe3+(aq)+eFe2+(aq); E=0.77V
Cl2(g)+2e2Cl(aq); E=1.40V

Identify the only incorrect statement regarding the quantitative estimation of aqueous Fe(NO3)2.
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Q5
Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox Titration. Some half – cell reactions and their standard potential are given below:
MnO4(aq)+8H+(aq)+5eMn2+(aq)+4H2O(I); E=1.51 V
Cr2 O27 (aq)+14H+(aq)+6e2Cr3+(aq)+7H2O(I); E=1.38V
Fe3+(aq)+eFe2+(aq); E=0.77V
Cl2(g)+2e2Cl(aq); E=1.40V

Identify the only incorrect statement regarding the quantitative estimation of aqueous Fe(NO3)2.
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