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Which of the following complex is with l...

Which of the following complex is with lowest number of unpaired electron

A

`[NiF_6]^(2-)`

B

`[Cu(NH_3)_4]^(2+)`

C

`[CoF_6]^(3-)`

D

`[Fe(EDTA)]^(-)`

Text Solution

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The correct Answer is:
A
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MOTION-COORDINATION COMPOUND-EXERCISE -3 SUBJECTIVE JEE ADVANCED
  1. Among the following ions which one has the highest paramagnetism?

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  2. Among the following, the compound that is both paramagnetic and colour...

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  3. A complex of certain metal has the magnetic moment of 4.91 BM whereas ...

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  4. Which of the following statements are true/false (i) [Co(H2O)4]^(2+)...

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  5. All the following complexes show decrease in their weights when placed...

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  6. What is oxidation state, magnetic moment and type of hybridisation of ...

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  7. Which of the following species have maximum number of unpaired elect...

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  8. Which of the following complexes is diamagnetic ?

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  9. The complex having highest Delta value

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  10. For the t(2g)^6eg^2 system, the value of magnetic moment (mu) is:

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  11. Which of the following complex is with lowest number of unpaired elect...

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  12. The complex K(4)[Zn(CN)(4)(O(2))(2)] is oxidised into K(2)[Zn(CN)(4)(O...

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  13. In both the complexes Co cation have t(2g)^6 eg^0 configuration. The...

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  14. Which one of the following species does not represent cationic species...

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  15. Following Sidgwick's rule of EAN, Co(CO)(x) will be.

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  16. In the Iso-electronic series of metal carbonyls, the C-O bond strength...

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  17. The magnetic moment of green complex is 1.7 BM & for brown complexes m...

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  18. If NO reacts with [Cr(CO)6] how many CO groups can be replaced by NO :

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  19. The value of the magnetic moment of a particular ion is 2.83 Bohr magn...

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  20. The complex ion . [M(en)Br(2)I(2)]^(-1), has two optical isomers. Thei...

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