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What is spectrochemical series? Explain ...

What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand.

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When the ligands are arranged in the increasing order of their crystal field stabilisation energy, i.e., in the increasing order of their strength, the list is known as spectrochemical series.
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The strong field ligand is "

Which of the following is low spin to strong field ligands

State any two differences between a strong electrolyte and a weak electrolyte .

Velence bond theroy describes the bonding in complexs in terms of coordinate -covalent bond resulting from overlap filled ligand orbitals with vacant metal hybrid orbitals This theory explains magnetic behaviour and geometrical shape of coordination compounds Magnetic moment of a complex compound can be determined experimentally and theoretically by using spin only formula Magnetic moment sqrtn (n+2)BM (where n = No. unpaired electrons) . The value of of spin only magnetic moment for octahedral complex of the following configuration is 2.84BM The correct statement is (a) d^(4) (in weak field ligand) (b) d^(2) (in weak field and in strong field ligand) (c) d^(3) (in weak field and in strong field ligand) (d) d^(5) (in strong field ligand) .

If a complexing metal of the first transition series has a di configuration for what values of could magntic properties alone distinguish between strong field and weak field ligand in octanderal coordination .

Crystal field theory with its assumptions of completely electrostatic metal-ligand interactions, does not appear to retionalize the spectrochemical series particularly well. To explain the order of ligands in the series we must admit some covalent contribution to the metal ligand bond, both sigma and pi. Sigma bonds are formed by ligands using their p orbitals (e.g. Cl^(-) ) or by hybrid orbitals (e.g. sp^(3) ) by (H_(2)O ) since all ligands are capable of such sigma interaction, this is not very useful in rationalizing spectrochemical series. The pi bonding ability of ligands partially justifies their position in spectrochemical series. pi-acid ligands. which can accept electron density from filled metal orbital into their empty orbital via pi interation appear towards stronger/higher and of the series e.g. CN^(-).PR_(3) etc. While sigma-donor ligands are typically weak field ligands e.g. Cl^(-),O^(2-) etc. Q. Which of the following d orbitals of the central atom is useful for sigma bond formation with ligands in octahedral field?

Explain with examples what is meant by chelate ligands ?

Give the correct of initials T or F for following statements. Use T if statements is true and F if it is false. (I) Co(III) is stabilised in presence of weak field ligands, while Co(II) is stabilised in presence of strong field ligand. ((II) Four coordinated complexes of Pd(II) and Pt(II) are diamagnetic and square planar. (III) [Ni(CN)_(4)]^(4-) ion and [Ni(CO)_(4)] are diamagnetic tetrahedral and square planar respectively. (IV) Ni^(2+) ion does not form inner orbital octahedral complexes

What is chelating ligand ?

Cobalt (II) is stable in aqueous solution but in the presence of complexing reagents ( strong field ligands ) it is readily oxidised. Why ?

CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Short Answer Type
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  8. The magnitude of CFSE (Crystal Field Splitting Energy , Delta(0)) can ...

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  9. What are t(2g) and e(g) orbitals?

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  10. Give the geometry and magnetic character of [NiBr4]^(2-)

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  11. How is tetrabutyl tim prepared?

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  12. What is the coordination number of Fe in [Fe("edta")]^(-) ?

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  13. Name the two broad categories of organometallic compounds.

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  14. In the formula Fe(eta^(5)-C5H5), what does the prefix eta^(5) denote?

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  15. Name two complexes which are used in medicines.

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  16. Name the ionization isomer of [Cr(H2O)5Br]SO4.

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  17. Which is used in cancer chemotherapy? .

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  18. What is the solution in which photographic film is washed? What reacti...

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  19. Why complexes are prefferred in the electrolytic bath for electroplati...

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  20. What happens when potassium ferrocyanide solution is added to a ferric...

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