Gate Syllabus for Chemistry
PHYSICAL CHEMISTRY
Structure: Quantum theory: principles and techniques; applications to a particle
in a box, harmonic oscillator, rigid rotor and hydrogen atom; valence bond and
molecular orbital theories, Hückel approximation; approximate techniques:
variation and perturbation; symmetry, point groups; rotational, vibrational,
electronic, NMR, and ESR spectroscopy
Equilibrium: Kinetic theory of gases; First law of thermodynamics, heat, energy,
and work; second law of thermodynamics and entropy; third law and absolute
entropy; free energy; partial molar quantities; ideal and non-ideal solutions;
phase transformation: phase rule and phase diagrams - one, two, and three
component systems; activity, activity coefficient, fugacity, and fugacity
coefficient; chemical equilibrium, response of chemical equilibrium to
temperature and pressure; colligative properties; Debye-Hückel theory;
thermodynamics of electrochemical cells; standard electrode potentials:
applications - corrosion and energy conversion; molecular partition function
(translational, rotational, vibrational, and electronic).
Kinetics: Rates of chemical reactions, temperature dependence of chemical
reactions; elementary, consecutive, and parallel reactions; steady state
approximation; theories of reaction rates - collision and transition state
theory, relaxation kinetics, kinetics of photochemical reactions and free
radical polymerization, homogeneous catalysis, adsorption isotherms and
heterogeneous catalysis.
INORGANIC CHEMISTRY
Main group elements: General characteristics, allotropes, structure and
reactions of simple and industrially important compounds: boranes, carboranes,
silicones, silicates, boron nitride, borazines and phosphazenes. Hydrides,
oxides and oxoacids of pnictogens (N, P), chalcogens (S, Se & Te) and halogens,
xenon compounds, pseudo halogens and interhalogen compounds. Shapes of molecules
and hard- soft acid base concept. Structure and Bonding (VBT) of B, Al, Si, N,
P, S, Cl compounds. Allotropes of carbon: graphite, diamond, C60. Synthesis and
reactivity of inorganic polymers of Si and P.
Transition Elements: General characteristics of d and f block elements;
coordination chemistry: structure and isomerism, stability, theories of metal-
ligand bonding (CFT and LFT), mechanisms of substitution and electron transfer
reactions of coordination complexes. Electronic spectra and magnetic properties
of transition metal complexes, lanthanides and actinides. Metal carbonyls,
metal- metal bonds and metal atom clusters, metallocenes; transition metal
complexes with bonds to hydrogen, alkyls, alkenes and arenes; metal carbenes;
use of organometallic compounds as catalysts in organic synthesis. Bioinorganic
chemistry of Na, K. Mg, Ca, Fe, Co, Zn, Cu and Mo.
Solids: Crystal systems and lattices, miller planes, crystal packing, crystal
defects; Bragg’s Law, ionic crystals, band theory, metals and semiconductors,
Different structures of AX, AX2, ABX3 compounds, spinels.
Instrumental methods of analysis: Atomic absorption and emission spectroscopy
including ICP-AES, UV- visible spectrophotometry, NMR, mass, Mossbauer
spectroscopy (Fe and Sn), ESR spectroscopy, chromatography including GC and HPLC
and electro-analytical methods (Coulometry, cyclic voltammetry, polarography –
amperometry, and ion selective electrodes).
ORGANIC CHEMISTRY
Stereochemistry: Chirality of organic molecules with or without chiral centres.
Specification of configuration in compounds having one or more stereogenic
centres. Enantiotopic and diastereotopic atoms, groups and faces.
Stereoselective and stereospecific synthesis. Conformational analysis of acyclic
and cyclic compounds. Geometrical isomerism. Configurational and conformational
effects on reactivity and selectivity/specificity.
Reaction mechanism: Methods of determining reaction mechanisms. Nucleophilic and
electrophilic substitutions and additions to multiple bonds. Elimination
reactions. Reactive intermediates- carbocations, carbanions, carbenes, nitrenes,
arynes, free radicals. Molecular rearrangements involving electron deficient
atoms.
Organic synthesis: Synthesis, reactions, mechanisms and selectivity involving
the following- alkenes, alkynes, arenes, alcohols, phenols, aldehydes, ketones,
carboxylic acids and their derivatives, halides, nitro compounds and amines. Use
of compounds of Mg, Li, Cu, B and Si in organic synthesis. Concepts in multistep
synthesis- retrosynthetic analysis, disconnections, synthons, synthetic
equivalents, reactivity umpolung, selectivity, protection and deprotection of
functional groups.
Pericyclic reactions: Electrocyclic, cycloaddition and sigmatropic reactions.
Orbital correlation, FMO and PMO treatments.
Photochemistry: Basic principles. Photochemistry of alkenes, carbonyl compounds,
and arenes. Photooxidation and photoreduction. Di-p- methane rearrangement,
Barton reaction.
Heterocyclic compounds: Structure, preparation, properties and reactions of
furan, pyrrole, thiophene, pyridine, indole and their derivatives.
Biomolecules: Structure, properties and reactions of mono- and di-saccharides,
physicochemical properties of amino acids, chemical synthesis of peptides,
structural features of proteins, nucleic acids, steroids, terpenoids,
carotenoids, and alkaloids.
Spectroscopy: Principles and applications of UV-visible, IR, NMR and Mass
spectrometry in the determination of structures of organic molecules.
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