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CuSO(4) reacts with KCN to form...

`CuSO_(4)` reacts with KCN to form

A

`Cu(CN)_(2)`

B

`CuCN`

C

`K_(2)[Cu(CN)_(4)]`

D

`K_(3)[Cu(CN)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
B,D
`(B)` and `(D)`
`2CuSO_(4)+4KCNrarr2CuCN+2K_(2)SO_(4)+(CN)_(2)`
`3KCN+CuCNrarr K_(3)[Cu(CN)_(4)] `
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NARAYNA-CHEMISTRY OF HEAVY METALS-Level-V multiple answer questions
  1. In which reaction (s) blood red coloration is observed in product?

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  2. K(4)[Fe(CN)(6)] is used to detect

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  3. CuSO(4) reacts with KCN to form

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  4. Among the following the colour less compound (s) is // are

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  5. Potassium manganate (K2MnO4) is formed when

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  6. The equilibrium 2Cu^(1) hArr Cu^(0)+Cu^(11) in aqueous medium at 2...

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  7. For the given aqueous reactions, which of the statements(s) is ( are) ...

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  8. CuSO(4).5H(2)O overset(1000^(@)C)(rarr)underset(("solide")("gas"))(A+B...

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  9. Which of the following coinage metal is // are dissolved in conc. HNO(...

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  10. When ferrous sulphate is added to mercuric chloride then

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  11. Which of the following statement is wrong regarding copper sulphate.

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  12. Copper ion forms blue coloured complex with ligand NH(3) and a colourl...

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  13. Which of the following is // are correct about Wilkinson's catalyst?

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  14. Which of the following give O(2) on strong heating ?

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  15. K(2)MnO(4) can be converted to KMnO(4) by

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  16. The diamagnetic compounds is/are

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  17. The compounds that liberate Cl(2) on heating with conc. HCl is // are

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  18. Which of the following ions will give a coloured precipitate with lead...

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  19. The metal oxide which decomposes on heating is // are :

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  20. The species that undergoes disproportionational is an alkaline medium ...

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