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Standard Electrode Potentials

Zinc can disp...

Question

Zinc can displace silver from $[A g (C N)_{2}]^{-}$ .
If true enter 1, else enter 0.

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Solution

Zn can displace silver from $[A g (C N)_{2}]^{-}$ .
$2 N A [A g (C N)_{@}] + Z n \to N a_{2} [Z n (C N)_{4}] + 2 A g$
This is because standard oxidation potential of $Z n / Z n^{2 +}$ is more than $A g / A g^{+}$ i.e. ${E^{o}}_{Z n / Z n^{2 +}}$ $> {E^{o}}_{A g / A g^{+}}$ .

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