(a) Write the names of the following coordination compounds (2 Marks) (i) [Co(NH3),Cl]Ch (ii) K[Fe(CN)6] (iii) [RhC1 (PMe3)3] (iv) K[CrCO(CN);] (v) [Co(en);]3+ (b) Write the formula for each of the following species (2 Marks) (ii) ammonium diaquabis(oxalato)nickelate(II) (iv) potassium hexafluorocobaltate(III) (i) tetrabromorhodate(II) (iii) hexaammineiron(III) nitrate (v) hexammineiron(III) hexacyanochromate (III) (c) Compare, with the aid of energy-level splitting diagrams, the stability of a tetragonally elongated d complex relative to that of an octahedral complex (3 Marks) (d) A solution of [Ni(HO).]* is green and paramagnetic ( =2.90 BM), whereas a solution of [Ni(CN)4] is colorless and diamagnetic. Give a qualitative explanation for these observations (2 Marks) (e) Calculate the ligand field stability energy (LFSE) and the magnetic susceptibility of the following species (3 Marks) (i) [Fe(CN),] (ii) [CoCl.] (iii) [IrBr.]. (f) Set up a microstate table for a p configuration, determine the free ion terms and organize the resultant terms in order of increasing energy (5 Marks) (g) Explain the relative magnitudes of the crystal field splitting (A.) in the following pair of compounds (2 Marks) (i) [CoF6] (A. = 13, 100cm') and Co(NH3)]+ (A. = 22, 900 cm) (ii) [Fe(HO)]+ (A. = 14, 000 cm) and [Fe(CN).] (A. = 32, 000 cm)