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[NiCl(4)]^(2-) is paramagnetic while [Ni...

`[NiCl_(4)]^(2-)` is paramagnetic while `[Ni(CO)_(4)]` is diamagnetic though both are tetrahedral. Why?

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(i) Write the geometrical isomer of the complex [Co(en)_(2)Cl_(2)]^(+) . (ii) [NiCl_(4)]^(2-) is paramagnetic while [Ni(CN)_(4)]^(2-) is diamagnetic through both are tetrahedral . Why ?

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(a) What type of isomerism is shown by the complex [Co(NH_(3))_(5)(SCN)]^(2+) ? (b) why is [NiCl_(4)]^(2-) paramagnetic while [Ni(CN)_(4)]^(2-) is diamagnetic ? (Atomic number of Ni=28) (c) Why are low spin tetrahedral complexes rarely observed?

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PRADEEP-CORDINATION COMPOUNDS-Important Questions
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  3. Account for different magnetic behaviour of hexacyanoferrate (III) and...

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  4. Explain on the basis of valence bond theory that [Ni(CN)(4)]^(2-) ion ...

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  9. Amongst the following ions, which one has the highest magnetic moment ...

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  12. Explain the following cases giving appropriate reasons : (i) CuSO(...

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  13. Aqueous copper sulphate solution (blue in colour) gives (i) a green pr...

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  14. (a) Draw a figure to show splitting of degenerate d- orbitals in an oc...

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  15. Why do compounds having similar geometry have different magnetic momen...

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  16. Using crystal field theory, draw energy level diagram, write electroni...

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  17. (a) Calculate the overall complex dissociation equilibrium constant fo...

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