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The correct order for the wavelength of absorption in the visible region is

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As metal ion is fixed, the increasing field strengths (CFSE values) of the ligands from the spectrochemical series are in the order: `H_2OltNH_3ltNO2^(ɵ)`.
Thus. The energies absorbed for excitation will be in the order:
`[Ni(H_2O)_6]^(2+)lt[Ni(NH)_6]^(2+)lt[Ni(NO_2)_6]^(4-)` `(IIIltIIltI)` As `E=(hc)/(lamda)`. The wavelengths absorbed will be in the opposite order:
The answer is `:IgtIIgtIII`.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
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  3. Discuss the nature of bonding in the following coordination entities o...

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  4. The magnitude of CFSE (Crystal Field Splitting Energy , Delta(0)) can ...

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  5. Write 1st 5 order and define What is spectrochemical series?

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  6. The magnitude of CFSE (Crystal Field Splitting Energy , Delta(0)) can ...

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  8. A solution of [Ni(H(2)O)(6)]^(2+) is green but a solution of [Ni(CN)(4...

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  9. [Fe(H(2)O)(6)]^(3+) is strongly paramagnetic whereas [Fe(CN)(6)]^(3-) ...

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  10. Give the IUPAC name of the following compounds

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  12. Write the IUPAC names of the following compounds

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  14. What is meant by the chelate effect? Give an example.

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  15. Discuss briefly giving an example in each case the role of coordinatio...

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  16. How many ions are produced from the complex Co(NH3)4Cl2 in solution ? ...

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

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  18. The oxidation number of hyrogen is (i) 0 (ii) +1 (iii) -1 ...

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  19. Amongst the following, the most stable complex is (i) [Fe(H(2)O)(6)]...

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  20. The correct order for the wavelength of absorption in the visible regi...

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