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Excess of ammonia solution is added to C...

Excess of ammonia solution is added to `CuSO_(4)` solution.

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State, the equations, what happens when : Excess of ammonia solution is gradually added to a solution of CuSO_(4)

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An aqueous solution of a gas (X) -turns red litmus blue. When excess of this solution is added to copper sulphate solution, it turns deep blue. When this solution is added to FeCl_(3) solution, a brownish precipitate soluble in HNO_(3) is obtained. Identify the gas (X) and write balanced equations for each of the reaction involved.

H_(2) gas is passed through CuSO_(4) solution

In qualitative analysis, a black precipitate is obtained when H_(2)S is passed through an acidified aqueous solution of a salt . A blue coloured solution is obtained on boiling the preciptate with dilute HNO_(3) . The substance obtained on addition of excess of ammonia solution to this blue solution is -

What will be the colour of the resulting when excess aqueous ammonia is added to an aqueous solution of copper sulphate?

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Knowledge Check

  • A deep blue colour appears when excess of ammonium hydroxide is added to a solution containing the cation

    A
    `Al^(3+)`
    B
    `Fe^(2+)`
    C
    `Zn^(2+)`
    D
    `Cu^(2+)`

  • In qualitative analysis, a black precipitate is obtained when H_(2)S is passed through an acidified aqueous solution of a salt . A blue coloured solution is obtained on boiling the preciptate with dilute HNO_(3) . The substance obtained on addition of excess of ammonia solution to this blue solution is -

    A
    deep blue preciptate of `Cu(OH)_(2)`
    B
    deep blue solution of `[Cu(NH_(3))_(4)]^(2+)`
    C
    deep blue solution of `Cu(NO_(3))_(2)`
    D
    deep blue solution of `Cu(OH)_(2).Cu(NO_(3))_(2)`
    • CHHAYA PUBLICATION-P-BLOCK ELEMENTS-ADDITIONAL QUESTIONS ( STATE WITH EQUATIONS, WHAT HAPPENS WHEN)
    1. Excess of ammonia solution is added to CuSO(4) solution.

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    2. Excess of Cl(2) gas is allowed to react with ammonia.

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    3. CO(2) gas is passed through liquid ammonia at 473K under a pressure ...

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    4. NO gas is passed through acidified KMnO(4) solution.

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    5. Metallic Mg is reacted with very dilute (1-2%) and cold HNO(3).

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    6. Conc.HNO(3) is added to FeSO(4) solution in presence of H(2)SO(4).

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    7. Aqua regia is added to gold.

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    8. White phosphorus is added to silver nitrate solution.

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    9. Phosphorus acid is heated.

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    10. Phosphine gas is passed through silver nitrate solution.

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    11. H(3)PO(3) is added to KMnO(4) solution acidified with H(2)SO(4).

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    12. Phosphonium iodile is heated with concentrated KOH solution.

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    13. O(3) gas is passed throught KI solution.

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    14. O(3) gas is passed throught acidified FeSO(4) solutions.

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    15. Propene is reacted with O(3) and the resulting compound is decompos...

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    16. SO(2) gas is passed through a clear solution of lime water.

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    17. H(2)S is passed throught hot and concentrated H(2)SO(4).

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    18. Concentrated H(2)SO(4) is added to cane sugar .

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    19. F(2) gas is passed through 2% NaOH solution.

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    20. A mixture of NaCl, MnO(2) and cocn.H(2)SO(4) is heated .

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