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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
Ag is less reactive than Cu.
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GRB PUBLICATION-SALT ANALYSIS-H: IInd Group Cations
  1. Aq. Suspension of a yellow substance (A) overset(KI)underset("conc.sol...

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  2. Brown ppt.(A) dissolve in HNO(3) gives (B) which gives white ppt. (C) ...

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  3. Colourless solutions of the following four salts are placed separately...

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  4. Identify the hydrated blue salt which when treated with KI solution, a...

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  5. Which of the following is soluble is yellow ammonium sulphide?

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  6. A solution of concentrated aqueous ammonia is added dropwise to 1mL of...

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  7. A colourless solution is known to contain one of these ions. Which ion...

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  8. What are formed products, when aqueous solution of CuCl(2) and (NH(4))...

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  9. What products result when equal volumes of equimolar aqueous solutions...

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  10. Which solution produces a black precipitate when added to an aqueous c...

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  11. Which cation forms an insoluble chloride and an insoluble sulphide?

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  12. Select reaction in which oxidation number of copper is not changed in ...

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  13. Which compound is formed when excess KCN is added to aqueous solution ...

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  14. Consider the following statements: Statement-1: Cu^(2+) ions are red...

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  15. Chocolate brown precipitate is formed with:

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  16. When concentrated HCI is added to an aqueous solution of CoCl(2...

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  17. In the separation of Cu^(2+) and Cd^(2+) of Iind group in qualitative ...

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  18. Compound A,B and C are respectively:

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  19. Sometimes yellow turbidity appears while passing H(2)S gas even in sli...

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  20. H(2)S in the presence of HCl precipitates II group but not IV group be...

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