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[Fe(CN)6]^4- and [Fe(H2 O)6]^2+ are o...

[Fe(CN)6]^4- and [Fe(H2 O)6]^2+ are of different colours. in dilute solutions. Why?

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It is because .CN^-. is strong field ligand whereas .H_2 O. is weak field ligand a a result complexes differ in magnitude of crystal field .splitting, energy .(Delta_0). that is why they absorb different wavelengths and radiate different colours from visible region.
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V PUBLICATION-COORDINATION COMPOUNDS-QUESTION BANK
  1. [Cr(NH3)6]^3+ is paramagnetic while [Ni(CN)4]^2- is' diamagnetic....

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  2. A solution of [Ni(H2O)6]^(2+) is green but a solution of [Ni(CN)4]^(2-...

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  3. [Fe(CN)6]^4- and [Fe(H2 O)6]^2+ are of different colours. in dil...

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  4. Discuss the nature of bonding in metal carbonyIs.

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  5. Give the oxidation state, d-orbital occupation and coordination number...

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  6. Write down the IUPAC name for each of the following complexes and indi...

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  7. What is meant by stability of a coordination compound in solution? Sta...

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  8. What is meant by chelate effect? Give an example.

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  9. Discuss briefly giving an example in each case the role of coordinati...

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  10. How many ions are produced from the ćomplex [Co(NH3)6]Cl3 in solution?...

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  11. Amongst the following ions which one has the highest magnetic moment v...

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  12. The oxidation nụmber of cobalt in K(Co(CO)4) is i) '+1' ii '+3' iii) ...

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  13. Amongst the following the most stable complex is: i) '[Fe(H₂O)₆ ³⁺ ii)...

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  14. What will be the correct order for the wavelengths of absorption in th...

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  15. Based on the number of donor atomsin ligands they can be classified as...

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  16. A coordination entity is given below: '[CrCl2(0 x)2]^3-' Now, identify...

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  17. Two complexes [Fe(CN)6]^(3-) and [Fe(CN)6]^(4-) are given. Cómpare the...

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  18. "Strength of the ligand can affect the magnetic property of the coordi...

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  19. The magnetic behaviour of a complex can be expained on the basis of VB...

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  20. A list of coordination compounds are given below. 'PtCl2(NH3)2', Which...

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