SEMESTER-II
CHS 1514
CORE/ Theory
INORGANIC CHEMISTRY-II
5 hrs / 5 cr
Course objectives:
 To understand the hybridization and shapes of inorganic molecules
 To study the ionic compounds and Lattice energy
 To gain knowledge about chemical forces and noble gases
 To understand about the compounds of Group III and Group IV
Course outcomes:
 To outline Lewis, Sidwick theory, distinguish σ and π bonds and predict the shape
and bond characteristics of molecules using VB, VSEPR, MO theory
 To describe imperfections in crystals, derive and apply limiting radius ratio for the
structure of ionic solids, construct Born – Haber cycle, calculate lattice energy,
Illustrate implications of Born – Lande equation an predict the extent of
covalency using Fajans rule
 To discuss types of chemical forces, describe types, consequences and uses of
noble gases and outline the structure of Xenon compounds
 To outline general characteristics of group III elements, compare the properties
of compounds, formulate preparation, and describe the structure , properties, uses
of boron compounds
 To explain general characteristics of group IV elements, outline the features and
properties of Carbon allotrope, classify and explain the structure and properties of
silicates, describe the types, preparation, properties and applications of
compounds of group IV elements.
UNIT - I: COVALENT BONDING
(12Hrs)
Lewis theory- Sidgwick theory – sigma and pi bonds – variable covalency –VB theory and its
limitations – types of hybridization and shapes of inorganic molecules and ions – VSEPR theory
– regular and irregular geometries – MO theory – LCAO method – homo and hetero nuclear
diatomic molecules – bond characteristics.
UNIT - II: IONIC BONDING
(12Hrs)
Types of ionic solids – radius ratio rule – limiting radius ratios for coordination numbers 3, 4 and
6 – applications – limitations – close packing – ionic compounds of type AX, AX2 – layer
structure – lattice energy and Born Haber cycle – Born-Lande equation – solvation energy and
solubility of ionic solids – polarizing power and polarisabilities of ions – Fajan’s rule –
imperfections in crystals.
UNIT - III: CHEMICAL FORCES
(12Hrs)
Types of chemical forces – ion-dipole forces – dipole-dipole interaction – ion-induced dipole
interaction – dipole-induced dipole interaction – London dispersion forces – Hydrogen bonding –
types and consequences –applications.
THE NOBLE GASES
Occurrence – discovery – isolation of noble gases from atmosphere – physio- chemical method –
physical properties of helium – compounds of xenon – fluorides – oxides – oxo fluorides –
structures and shapes – uses of noble gases – clathrates.
UNIT - IV: BORON GROUP CHEMISTRY
(12Hrs)
General characteristics – periodicity in group properties – diagonal relationship between boron
and silicon – occurrence and uses of elements – comparative study of hydrides, oxides,
hydroxides, trihalides– preparation and structure of borides – preparation, properties and
structure of diborane – higher boranes and Wades rule – boron nitride – borazine – preparation,
properties and uses of H3BO3
UNIT - V: CARBON GROUP CHEMISTRY
(12Hrs)
General characteristics–catenation– unique character of carbon– comparison of carbon and
silicon – Allotropy of carbon- diamond-graphite-fullerenes- grapheme –carbides–halides–
oxides– silicates– classification– zeolites– ultramarines– silicone– glass– preparation
properties and uses of freons, carborundum and lead pigments.
References:
1. B.R. Puri, L.R. Sharma and K.C. Kalia, Principles of Inorganic Chemistry, Milestone
Publishers, 2012 .
2. J.D. Lee, Concise Inorganic Chemistry, Vedition., Chapman & Hall, 2000.
3. P.L. Soni., Mohan Katyal, A text book of Inorganic Chemistry, Sultan Chand & Sons,
2006.
4. W.U. Malik, G.D. Tuli and R.D. Madan, Selected topics in Inorganic Chemistry,
S.Chand& Co. Ltd., 2004.
5. R. Gopalan, Inorganic Chemistry for Undergraduates, University Press (India) Pvt. Ltd.,
2009
6. J.E.Huheey, Principles of Structure andReactivity,IVEdn., Collins College Publishers
1993.