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Aqueous solution of nickel sulphate on t...

Aqueous solution of nickel sulphate on treating with pyridine and then adding a solution of sodium nitrite gives dark blue crystals of

A

` [Ni (py)_4]SO_(4)`

B

`[Ni(py)_(2)(NO_(2))_(2)]`

C

`[Ni(py)_(4)](NO_(2))_(2)`

D

`[Ni(py)_(3)(NO_(2))]_(2)SO_(4)`

Text Solution

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The correct Answer is:
C
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NCERT FINGERTIPS-PRACTICE PAPER -1-Practice Paper 1
  1. Which of the following statements is not ture ?

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  2. Which of halogen acids indicated below is incorrect ?

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  3. Aqueous solution of nickel sulphate on treating with pyridine and then...

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  4. m-Chlorobenzaldehyde on reaction with conc. KOH at room temperature gi...

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  5. Which of the following decreases on dilution of electrolyte solution ...

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  6. Germanium is an example of

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  7. Which of the following synthesis gives 3-methyl -1- hexanol ?

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  8. Non-reducing sugar is

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  9. The electrode potential of oxidation half cell

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  10. In a cubic closed packed structure of mixed oxides the lattice is made...

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  11. Which of the following is not an actinide ?

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  12. Copper is extracted from copper pyrites ore by heating in a blast fur...

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  13. Alcohols can be converted to various types of gasoline (petrol) by sh...

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  14. In a set of reactions, acetic acid yielded a product D. The struc...

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  15. The element with atomic number 33 belongs to

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  16. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  17. According to Arrhenius equation rate constant k is equal to Ae^(-E(a)/...

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  18. Among the electrolytes Na(2)SO(4) , CaCI(2), AI(2)(SO(4))(3) and NH(4...

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  19. Which is correct about saccharin ?

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  20. In which mode of expression the concentration of solution remains inde...

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