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[Fe(H(2)O)(6)]^(2+) is...

`[Fe(H_(2)O)_(6)]^(2+)` is

A

Pale green complex

B

Blue coloured complex

C

Red coloured complex

D

Violet coloured complex

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The correct Answer is:
A
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Explore conceptually related problems

[Fe(H_(2)O)_(6)]^(3+) is strongly paramagnetic whereas [Fe(CN)_(6)]^(3-) is weakly paramagnetic Explain.

In octahedral complexes having co-ordination number 6, the degeneracy of the d-orbitals of central atom is removed due to ligand electron metal electron repulsions. In the octahedral complex three orbitals have lower energy, t_(2g) set and two orbitals have higher energy, eg set. This phenomenon is formed as crystal field splitting and the energy seperation is denoted by Delta_(0) . Thus the energy of the two eg orbitals will increase by (3//5)Delta_(0) and that of the three t_(2g) will decrease by (2//5)Delta_(0) . The erystal field splitling, Delta_(0) depends upon the field produced by the ligand and charge on the metal ion. Some ligands are able to produce strong field and in these cases, the splitting will be large whereas other produce weak fields and consequently result in small splitting of d-orbitals. Predict the order of Delta_(0) for the following compound i) [Fe(H_(2)O)_(6)]^(+2) ii) [Fe(CN)2(H_(2)O)_(4) iii) [Fe(CN)_(4)(H_(2)O)_(2)]^(2-)

[Fe(CN)_(4)]^(2-) and [Fe(H_(2)O)_(6)]^(2+) are of different colours in dilute solutions. Why ?

Amongst the following ions which one has the highest magnetic moment value? (i) [Cr(H_(2)O)_(6)]^(3+) (ii) [Fe(H_(2)O)_(6)]^(2+) (iii) [Zn(H_(2)O)_(6)]^(2+)

The d-orbitals participating in hybridisation of metal atom may be from the n & (n-1) shell. This depends on the nature of metal and nature of ligand. The complexes involving the inner d-level (inner orbital complexes) results when the ligand is a powerful (or) strong ligand results in a diamagnetic (or) low spin complexes. A weak ligand usually results in the formation of outer orbital complex (or) high spin complex. Number of unpaired electrons present in [Fe(CN)_(6)]^(4-)&[Fe(H_(2)O)_(6)]^(2+) are respectively.

What can be inferred from the magnetic moment values of the following complex species ? {:("Example","Magnetic Moment (BM)"),(K_(4)[Mn(CN)_(6)]," 2.2"),([Fe(H_(2)O)_(6)]^(2+)," 5.3"),(K_(2)[MnCl_(4)]," 5.9"):}

[Ti(H_(2)O)_(6)]^(3+) is coloured while [Sc(H_(2)O)_(6)]^(3+) is colourless. Explain.

The colour of [Ti(H_(2)O)_(6)]^(3+) is due to

The hybridisation of 'Al' in [Al(H_(2)O)_(6)]^(3+) is

AAKASH SERIES-CO-ORDINATION COMPOUNDS-LEVEL-I (EXERCISE-II)
  1. Optical isomerism is exhibited by a complex with

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  2. Ligands with which linkage isomerism is possible A) NO(2) B) CN^(-) ...

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  3. Optical isomers have A) property of chirality B) almost identical ...

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  4. Identify the correct statements among the following I) Cr in first s...

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  5. What is wrong about the following pair of compounds? [Cr(H(2)O)(6)]Cl(...

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  6. Geometrical isomerism in square planar complexes is given by

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  7. Which of the following compound shows optical isomerism?

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  8. M-L bonds in carbonyl compounds posses

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  9. IUPAC name of K(3)[Fe(CN)(6)] is (Ker CET)

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  10. K(4)[Fe(CN)(6)] is a

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  11. The oxidation number of Pt in [Pt(C2H4)Cl3]^(-) is

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  12. The effective atomic number of Cr in [Cr(NH3)6]Cl3 is

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  13. Discuss the nature of bonding and magnetic behaviour in the [FeF(6)]^(...

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  14. Give evidence that [Co(NH(3))(5)Cl]SO(4) and [Co(NH(3))(5)SO(4)]Cl are...

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  15. Which one of the following pairs of complexes has the effective atomic...

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  16. The carboxylic acid group attached to porphyrin of heme in blood is

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  17. Tetrapyrrole structure has

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  18. The formation of HbO(2) is

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  19. [Fe(H(2)O)(6)]^(2+) is

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  20. I) Chlorophyll is a magnesium porphyrin complex II) Mg atom forms tw...

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