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Nickel (Z=28) combines with a uninegativ...

Nickel `(Z=28)` combines with a uninegative monodentate ligand `X^(-)` to form a paramagnetic complex `[NiX_4]^(2-)`. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively:

A

one, tetrahedral

B

two, tetrahedral

C

one, square planar

D

two, square planar

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The correct Answer is:
B
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RESONANCE-COORDINATION COMPOUNDS-Exercise-3 Part-II: JEE(Main ) /AIEEE Problem
  1. Which one of the following has lowest value of paramagnetic behaviour?

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  2. The value of 'spin only' magnetic moment for one of the following conf...

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  3. Nickel (Z=28) combines with a uninegative monodentate ligand X^(-) to ...

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  4. IUPAC name [Co(NH(3))(5)(NO(2))]Cl(2) is

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  5. In Fe(CO)5, the Fe-C bond possesses:

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  6. How many EDTA molecules are required to make an octahedral complex wit...

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  7. The spin-only magnetic moment [in units of Bohr magneton, (mu(B) of Ni...

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  8. Which one of the following has a square planar geometry? (Co=27, Ni=...

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  9. The coordination number and the oxidation state of the element 'E' in ...

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  10. In which of the following octahedral complexes of Co (at. no. 27), wil...

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  11. Which of the following has an optical isomer?

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  12. Which of the following pairs represents linkage isomers ?

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  13. A solution containing 2.675 g of CoCl(3).6NH(3) (molar mass = 267.5 g ...

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  14. Which one of the following has an optical isomer ? (en=ethylenediami...

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  15. Which of the following facts about the complex [Cr(NH(3))(6)]Cl(3) is ...

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  16. The magnetic moment (spin only) of [NiCl4]^(2-) is

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  17. Which among the following will be named as dibromidobis (ethylene diam...

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  18. Which of the following complex species is not expected to exhibit opti...

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  19. The octahedral complex of a metal ion M^(3+) with four monodentate lig...

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  20. The number of geometric isomers that can exist for square planar [Pt(...

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