UNIVERSITY OF MADRAS
B.Sc. DEGREE COURSE IN CHEMISTRY
SEMESTER SYSTEM WITH CREDITS
(Effective from the Academic Year 2003-2004)

Semester VI - Paper IX - Inorganic Chemistry II

Duration: 3 hrs
Maximum Marks: 100
Credits: 4

Unit - I 'd' Block Elements and Coordination Compounds

1.1 Characteristics of 'd' block elements. Comparative study of Ti, V, Cr, Mn and Iron group metals - occurrence, oxidation states, magnetic properties, catalytic properties and colour.

1.2 Coordination compounds - Nomenclature, Werner's theory, EAN rule, coordination number and geometry. Chelation and effect of chelation. Applications of EDTA. lonisation isomerism, hydrate isomerism, Linkage isomerism, hgand isomerism, coordination isomerism, polymerization isomerism. Geometrical and optical isomerism in 4 and 6 coordinated complexes.

1.3 Theory of bonding. Valence bond theory - hybridization, geometry and magnetic properties. Failure of VBT.

Unit - II Crystal Field Theory

2. Crystal field theory - Spectrochemical series - splitting of 'd' orbitals in octahedral, tetrahedral and square planar complexes. CFSE calculations in octachdral and square planar complexes - low spin and high spin complexes - Explanation of magnetic properties, colour and geometry using CFT. Trans effect and its explanation.

2.2 Comparison of VBT and CFT.

2.3 Bioinorganic chemistry - Biological aspects of Fe, Zn, Mg, Co and Mo. Role of Na, K, Ca and P.

2.4 Pi acceptor ligands - Bonding, hybridization and structures of carbonyls of Ni, Cr, Fe, Co Mn, W and V.

Unit - III Pollution And Its Control

3.1 Sources of air pollution CO₂, Pb, CO, oxides of nitrogen and sulphur, freons, smog - green house effect - global warming - methods to control.

3.2 Pollution of soil - fertilizers, insecticides, solid waste, and acid ram. Methods to control.

3.3 Pollution of water - Industrial and domestic waste, effluents, sewage waste, fertilizers, insecticides oil, toxic metals. COD and BOD. Consequences - methods to control. Rain water harvesting - its need, methods and advantages.

3.4 Noise pollution and radioactive pollution - health hazards.