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For [FeF(6)]^(3-)" and "[CoF(6)]^(3-), t...

For `[FeF_(6)]^(3-)" and "[CoF_(6)]^(3-)`, the statement that is correct is :

A

both are coloured

B

both are colourless

C

`[FeF_(6)]^(3-)` is coloured and `[CoF_(6)]^(3-)` is colourless

D

`[FeF_(6)]^(3-)` is colourless and `[CoF_(6)]^(3-)` is coloured

Text Solution

Verified by Experts

The correct Answer is:
D
Both have unpaired electron.
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For [FeF_(6)]^(3-) and [CoF_(6)]^(3-) , the correct statement is

What is true about [Mn Cl_(6) ]^(3-) , [FeF_(6)]^(3-) and [CoF_(6)]^(3-) ? each of these are outer orbital complexes . II. Each of these have SP^(3) d^(2) hybridisation . III . Each of these are paramagnetic . IV . [MnCl_(6) ]^(3-),[FeF_(6)]^(3-)and [CoF_(6)]^(3-) have four ,five and four unpaired electrons respectively . Choose the correct statements .

For the given set of complexes : (P) [Co(CN)_(6)]^(3-)" and "[Co(H_(2)O)_(6)]^(3+) (Q) [Co(H_(2)O)_(6)]^(3+)" and "[Rh(H_(2)O)_(6)]^(3+) (R ) [Co(H_(2)O)_(6)]^(3+)" and "[CoF_(6)]^(3-) (S) [Co(NH_(3))_(6)]^(3+)" and "[CoF_(6)]^(3-) Select the correct order for Delta_(0) :

s-1: [MnCl_(6)]^(3),[FeF_(6)]^(3-) and [CoF_(6)]^(-3) are paramagnetic having four, five and four unpaired electrons respectively. S-2: Valence bond theory gives a quantitative interpreation of the thermodynamic stabilities of coordination compounds. S-3: The crystal field splitting Delta_(o) depends upon the field produced by the ligand and charge onn the metal ion.

Co^(3+) ion forms octahedral complex with ligands like F^(-) and NH_(3) as [CoF_(6)]^(3-) and [Co(NH_(3))_(6)]^(3+) . These two complexes differ in:

The reaction [Fe(CN)_(6)]^(3-) rarr [FeF_(6)]^(3-) takes place with

OP TANDON-COORDINATION COMPOUNDS-D.VBT, CFT, Hybridisation
  1. Which of the following complexes are tetrahedral but spin free ?

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  2. Which of the following is not a shortcoming of VBT ? (P) Quantitativ...

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  3. If crystal field theory is completely followed, then which of the foll...

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  4. Ruby is aluminium oxide (Al(2)O(3)) containing about 0.5-1% Cr^(3+) io...

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  5. For [FeF(6)]^(3-)" and "[CoF(6)]^(3-), the statement that is correct i...

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  6. Which of the following complex ions has electrons that are symmetrical...

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  7. Which of the following statement is false ?

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  8. The number of unpaired electrons ind^(6), low spin, octahedral complex...

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  9. Which of the following option is correct for [Fe(H(2)O)(6)]^(2+)" and ...

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  10. Which of the following complex does not have tetrahedral geometry ?

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  11. Which of the following complex acts as good reducing agent ?

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  12. Which of the following statement is correct for [NiCl(2)(NH(3))(2)]^(0...

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  13. Which of the following order is correct for Delta(0)"/"Delta(t)"/"Delt...

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  14. Select the correct statement about [CoF(6)]^(3-) :

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  15. The complex [Pt(NH(3))(4)]^(2+) has ……….structure.

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  16. Which of the following complex ion has tetrahedral arrangement ?

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  17. The pair of species having square planar shapes for both is :

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  18. Select incorrect characteristics about [Zn(gly)(2)]^(0) :

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  19. Which of the following is not correctly matched (P : Pairing energy )?

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  20. Select correct statement :

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