What is -A- in the following reaction 2Fe3-aq-Sn2-aq - 2Fe2-aq-A

2Fe^3++Sn^2+→ 2Fe^2++Sn^4+ ...

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Oxidising Reagent and Reducing Reagent

What is `A' i...

Question

What is `A' in the following reaction $2 F e^{3 +} (a q) + S n^{2 +} (a q) \to 2 F e^{2 +} (a q) + A$

S n^{3 +} (a q)

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S n^{4 +} (a q)

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S n^{2 +} (a q)

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S n

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Solution

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2 F e^{3 +} (a q) + S n^{2 +} (a q) \to 2 F e^{2 +} (a q) + A

2 F e_{a q}^{2 +} + C l_{2 (g)} \to 2 F e_{(a q)}^{3 +} + 2 C l_{(a q)}^{-}

2 {F e}^{3 +} (a q) + 2 I^{⊖} (a q) ⟶ I_{2} (a q) + 2 {F e}^{2 +} (a q)

Consider the following $E^{0}$ values:

$E_{F e^{3 +} / F e^{2 +}}^{0} = + 0.77 V$ ; $E_{S n^{2 +} / S n}^{0} = - 0.14 V$

Under standard conditions the EMF for the reaction

$S n_{(s)} + 2 F e {^{3 +}}_{(a q)} \to 2 F e {^{2 +}}_{(a q)} + S n {^{2 +}}_{(a q)}$ is :

E^{0}

E_{F e^{3 +} / F e^{2 +}}^{0}

E_{S n^{2 +} / S n}^{0}

S n (s) + 2 F e^{3 +} (a q) \to 2 F e^{2 +} (a q) + S n^{2 +} (a q)

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