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Colourless solutions of the following fo...

Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in each one of these. Which solution will turn blue?

A

`KNO_(3)`

B

`AgNO_(3)`

C

`Zn(NO_(3))_(2)`

D

`ZnSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
When a strip of copper is dipped in the solution of silver nitrate, the solution becomes blue. Cu is placed above Ag in electrochemical series.
`2AgNO_(3)+curarr Cu(NO_(3))_(2)+2Ag`
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ERRORLESS -D & P-BLOCK ELEMENTS-Ordinary Thinking (Compounds of d & f block elements)
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  3. Colourless solutions of the following four salts are placed separately...

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  4. A group of acidic oxide is

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  5. Silver nitrate on heating gives

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  6. Out of following which compound is used for preservation of wood

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  7. When conc. HCl is added to the solution of Cr(NO(3))(2), then it slowl...

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  9. Which element on reaction with HNO(3) gives five different products

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  10. Which of the following is also known as ''Fools gold''

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  11. Collin's reagent is

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