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Inorganic chemistry is the branch of chemistry which deals with the chemical changes in most primitive manner. It is not mathematical in nature and deals in elemental form of nature. The Mendeleev’s Periodic Table becomes the basis of study as we divide the elements according to their groups and then study them. These groups are regrouped as s-block, p-block, d-block and f-block elements. In these p-block is not the bulkiest but also the most important part. The order of importance is followed by s-block elements. The chapter of Coordination Compounds is also important from the scoring point of view. The other chapters of Analytical Chemistry and Extraction of Elements also fetch few questions which are direct in nature.
In IIT JEE exam it is always a good idea to start with the questions of inorganic chemistry which are asked from the chapters p- block elements, s- block elements and classification of elements and periodicity in property.
Periodic Table & Periodic Properties: Modem periodic law and present form of the periodic table, s, p, d and f block elements, periodic trends in properties of elements, atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity.
Chemical Bonding: Orbital overlap and covalent bond, Hybridisation involving s, p and d orbital’s only, Orbital energy diagrams for homonuclear diatomic species, Hydrogen bond, Polarity in molecules, dipole moment (qualitative aspects only), VSEPR model and shapes of molecules (linear, angular, triangular, square planar, pyramidal, square pyramidal, trigonal bipyramidal, tetrahedral and octahedral).
Co-ordination Compounds: Introduction to co-ordination compounds, Werner’s theory, ligands, co-ordination number, denticity, chelation, IUPAC nomenclature of mononuclear co-ordination compounds, isomerism, Bonding-Valence bond approach and basic ideas of Crystal field theory, colour and magnetic properties, Importance of co-ordination compounds (in qualitative analysis, extraction of metals and in biological systems).
S-Block (Alkali & Alkaline Earth Metals): Group 1 and Group 2 Elements, General introduction, electronic configuration and general trends in physical and chemical properties of elements, anomalous properties of the first element of each group, diagonal relationships. Preparation and properties of some important compounds – sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, Industrial uses of lime, limestone, Plaster of Paris and cement, Biological significance of Na, K, Mg and Ca.
D & F-Block:
Transition Elements: General introduction, electronic configuration, occurrence and characteristics, general trends in properties of the first row transition elements – physical properties, ionization enthalpy, oxidation states, atomic radii, colour, catalytic behaviour, magnetic properties, complex formation, interstitial compounds, alloy formation, Preparation, properties and uses of K2Cr2O7 and KMnO4.
Inner Transition Elements:
Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction.
Actinoids – Electronic configuration and oxidation states.
Group 13 to Group 18 Elements
General Introduction: Electronic configuration and general trends in physical and chemical properties of elements across the periods and down the groups; unique behaviour of the first element in each group.
Groupwise study of the p – block elements:
Group – 13: Preparation, properties and uses of boron and aluminium; Structure, properties and uses of borax, boric acid, diborane, boron trifluoride, aluminium chloride and alums.
Group – 14: Tendency for catenation, Structure, properties and uses of allotropes and oxides of carbon, silicon tetrachloride, silicates, zeolites and silicones.
Group – 15: Properties and uses of nitrogen and phosphorus, Allotrophic forms of phosphorus, Preparation, properties, structure and uses of ammonia, nitric acid, phosphine and phosphorus halides, (PCl3, PCl5), Structures of oxides and oxoacids of nitrogen and phosphorus.
Group – 16: Preparation, properties, structures and uses of dioxygen and ozone, Allotropic forms of sulphur, Preparation, properties, structures and uses of sulphur dioxide, sulphuric acid (including its industrial preparation), Structures of oxoacids of sulphur.
Group – 17: Preparation, properties and uses of chlorine and hydrochloric acid, Trends in the acidic nature of hydrogen halides, Structures of Interhalogen compounds and oxides and oxoacids of halogens.
Group – 18: Occurrence and uses of noble gases, Structures of fluorides and oxides of xenon.
Metallurgy: Modes of occurrence of elements in nature, minerals, ores; steps involved in the extraction of metals – concentration, reduction (chemical. and electrolytic methods) and refining with special reference to the extraction of Al, Cu, Zn and Fe, Thermodynamic and electrochemical principles involved in the extraction of metals.
Principles of Salt Analysis: Groups I to V (only Ag+, Hg2+, Cu2+, Pb2+, Bi3+, Fe3+, Cr3+, Al3+, Ca2+, Ba2+, Zn2+, Mn2+ and Mg2+), Nitrate, halides (excluding fluoride), sulphate and sulphide.
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