Short Answer TypeWhat do you understand by crystal field splitting? Draw figure to show splitting of degenerate d-orbitals in an octahedral crystal field.
What are the main postulates of Werner’s theory? Write the correct formula and IUPAC name of the coordination compound for CrCl3.6H2O, one mole of which give two moles of AgCl with AgNO3,.
[Fe(CN)6]4− In the above coordination complex, iron exists in the +II oxidation state. Fe2+. Electronic configuration of Fe2+is 4s0 3d6.
As CN− is a strong field ligand, it causes the pairing of the unpaired 3d electrons.
Since there are six ligands around the central metal ion, the most feasible hybridization is d2sp3. d2sp3 hybridized orbitals of Fe2+ . 6 electron pairs from CN− ions occupy the six hybrid d2sp3orbitals. Then,
Since CN- is strong field ligand it cause pairing. hence it is diamagnetic.
In this complex, the oxidation state of Fe is +3. eletronic configuration is 4s0 3d5.
There are 6 F− ions. Thus, it will undergo d2sp3 or sp3d2 hybridization. As F− is a weak field ligand, it does not cause the pairing of the electrons in the 3d orbital. Hence, the most feasible hybridization is sp3d2.
Since [FeF6]4– have unpaired electrons. Hence it is strongly paramagnetic.
Long Answer TypeGive the systematic name for each of the following compounds:
(i)[Pt(NH3)4Cl2][PtCl4]
(ii) [Cr(CO)5Cl](ClO3)2
(iii) K3[Cr(CN)6]
(iv)[Co(NH)4Cl2]+
(v) (NH4)3[Co(NO2)6]
(vi) K2[CuCl4]
Give the chemical formula for each of the following compounds:
(i) Potassium hexanitro cobaltate(III).
(ii) Potassium hexacyano cobaltate(III).
(iii) Ammonium trans-dichlorodiodo aurate(III).
(iv) Sodium pentacyano carbonyl ferrate(II).
(v) Diamminechlorido(methylamine)plantinum(II)
chloride.
(vi)Dichloridobis(ethane–1,2diamine)platinum(IV) nitrate
Short Answer Type
Switch
