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Properties of Acids

When Cu turni...

Question

When Cu turnings are added to $A g N O_{3}$ solution, it turns blue. It is due to formation of ____________.

C u^{2 +} (a q)

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C u^{+} (a q)

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A g^{+} (a q)

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None of these

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Solution

The correct option is A $C u^{2 +} (a q)$
When Cu turnings are added to $A g N O_{3}$ solution, it turns blue. It is due to the formation of aqueous $C u^{2 +}$ ions.
The reaction is a sshown below:

$C u + 2 A g N O_{3} \to C u (N O_{3})_{2} + 2 A g$

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