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Electrolytic Refining of Copper

When an aqueo...

Question

When an aqueous solution of $C u S O_{4}$ is stirred with a silver spoon then:

C u^{+}

will be formed

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A g^{+}

will be formed

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C u^{2 +}

will be deposited

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none of these

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Solution

The correct option is D none of these
Electro-chemical reactivity of $C u > A g$
$\Rightarrow$ $A g$ cannot displace $C u$ from its aqueous salt solution
$\Rightarrow$ when a silver spoon immersed in ${C u S O}_{4}$ solution, nothing happens
$A g + {C u S O}_{4} \to$ no reaction

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Similar questions

C u S O_{4}

C u^{2 +}

C u^{+}

500 m L

2 A g^{+} + C u ⇌ C u^{2 +} + 2 A g

[C u^{2 +}]

x M

500 m L

[C u^{2 +}]

N O_{3}^{⊖}

C u + N O_{3}^{⊖} ⟶ N O_{2} + {C u}^{2 +}

A g^{+}

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E_{A g^{+} / A g}^{\circ} = 0.799 v o l t; E_{C u^{2 +} / C u}^{\circ} = 0.337 v o l t

F e^{3 +}

F e^{2 +}

S n^{2 +}

F e^{3 +} / F e^{2 +} = 0.771 v o l t

S n^{2 +} / S n^{4 +} = - 0.250 v o l t

C u (N O_{3})_{2}

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