Werner's theory; nomenclature; cis-trans and ionisation isomerism; hybridisation and geometries (linear, tetrahedral, square planar and octahedral) of mononuclear complexes; bonding — VBT and CFT (octahedral and tetrahedral fields); magnetic properties (spin-only) and colour of 3d-series; ligands and spectrochemical series; stability; importance and applications; metal carbonyls.
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Q1 · Coordination Compounds · MEDIUM
A coordination compound with formula [M(NH₃)₄Br₂]Cl exhibits geometrical isomerism but not optical isomerism. The geometry and magnetic nature of the complex if M is Co³⁺ are respectively:
Q2 · Coordination Compounds · HARD
The spin-only magnetic moment value (in Bohr magnetons) for the octahedral complex [Fe(CN)₆]³⁻ is approximately:
Q3 · Coordination Compounds · HARD
Consider the complex ions [Fe(H₂O)₆]²⁺, [Fe(CN)₆]⁴⁻, and [FeF₆]³⁻. Arrange them in increasing order of their spin-only magnetic moment values (in BM):
Q4 · Coordination Compounds · HARD
The total number of geometrical isomers possible for the octahedral complex [Co(NH₃)₃(NO₂)₃] is: