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,.
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 TypeElectronic configuration of Cr is 4s1 3d5. In the complex [Cr(NH3)6]3+ Cr is in the +3 oxidation state i.e., d3 configuration. Also, NH3 is a weak field ligand that does not cause the pairing of the electrons in the 3d orbital.
Therefore, it undergoes d2sp3 hybridization and the electrons in the 3d orbitals remain unpaired. Hence, it is paramagnetic in nature.
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