UPSC IFS Chemistry Syllabus
Paper – I
1. Atomic structure
Quantum theory, Heisenberg uncertainity principle, Schrodinger wave equation (time independent). Interpretation of wave function, particle in one-dimensional box, quantum numbers, hydrogen atom wave functions. Shapes of s, p and d orbitals.
2. Chemical bonding
Ionic bond, characteristics of ionic compounds, factors affecting stability of ionic compounds, lattice energy, Born-Haber cycle; covalent bond and its general characteristics, polarities of bonds in molecules and their dipole moments. Valence bond theory, concept of resonance and resonance energy. Molecular orbital theory (LCAO method); bonding in homonuclear molecules: H+2, H2 to Ne2, NO, CO, HF, CN, CN-, BeH2 and CO2. Comparision of valence bond and molecular oribtal theories, bond order, bond strength and bond length.
3. Solid state
Forms of solids, law of constancy of interfacial angles, crystal systems and crystal classes (crystallographic groups). Designation of crystal faces, lattice structures and unit cell. Laws of rational indices. Bragg law. X-ray diffraction by crystals. Close packing, radious ratio rules, calculation of some limiting radius ratio values. Structures of NaCl, ZnS, CsCl, CaF2, CdI2 and rutile. Imperfections in crystals, stoichiometric and nonstoichiometric defects, impurity defects, semi-conductors. Elementary study of liquid crystals.
4. The gaseous state
Equation of state for real gases, intermolecular interactions, liquifictaion of gases and critical phenomena, Maxwell distribution of speeds, intermolecular collisions, collisions on the wall and effusion.
5. Thermodynamics and statistical thermodynamics
Thermodynamic systems, states and processes, work, heat and internal energy; first law of thermodynamics, work done on the systems and heat absorbed in different types of processes; calorimetry, energy and enthalpy changes in various processes and their temperature dependence. Second law of thermodynamics; entropy as a state function, entropy changes in various process, entropy reversibility and irreversibility, Free energy functions; criteria for equilibrium, relation between equilibrium constant and thermodynamic quantities; Nernst heat theorem and third law of thermodynamics. Micro and macro states; canonical ensemble and canonical partition function; electronic, rotational and vibrational partition functions and thermodynamic quantities; chemical equilibrium in ideal gas reactions.
6. Phase equilibria and solutions
Phase equilibria in pure substances; Clausius-Clapeyron equation; phase diagram for a pure substance; phase equilibria in binary systems, partially miscible liquids upper and lower critical solution temperatures; partial molar quantities, their significance and determination; excess thermodynamic functions and their determination.
Debye-Huckel theory of strong electrolytes and Debye-Huckel limiting Law for various equilibrium and transport properties. Galvanic cells, concentration cells; electrochemical series, measurement of e.m.f. of cells and its applications fuel cells and batteries. Processes at electrodes; double layer at the interface; rate of charge transfer,current density; overpotential; electroanalytical techniques voltametry, polarography, amperometry, cyclic-voltametry, ion selective electrodes and their use.
8. Chemical kinetics
Concentration dependence of rate of reaction; defferential and integral rate equations for zeroth, first, second and fractional order reactions. Rate equations involving reverse, parallel, consecutive and chain reactions; effect of temperature and pressure on rate constant. Study of fast reactions by stop-flow and relaxation methods. Collisions and transition state theories.
Absorption of light; decay of excited state by different routes; photochemical reactions between hydrogen and halogens and their quantum yields.
10. Surface phenomena and catalysis
Adsorption from gages and solutions on solid adsorbents, adsorption isotherms Langmuir and B.E.T. isotherms; determination of surface area,characteristics and mechanism of reaction on heterogeneous catalysts.
11. Bio-inorganic chemistry
Metal ions in biological systems and their role in ion-transport across the membranes (molecular mechanism), ionophores, photosynthesis PSI, PSII; nitrogen fixation, oxygen-uptake proteins, cytochromes and ferredoxins.
12. Coordination chemistry
(a) Electronic configurations; introduction to theories of bonding in transition metal complexes. Valence bond theory, crystal field theory and its modifications; applications of theories in the explanation of magnetism and electronic spactra of metal complexes.
(b) Isomerism in coordination compounds. IUPAC nomenclature of coordination compounds; stereochemistry of complexes with 4 and 6 coordination numbers; chelate effect and polynuclear complexes; trans effect and its theories; kinetics of substitution reactions in square-planer complexes; thermodynamic and kinetic stability of complexes.
(c) Synthesis and structures of metal carbonyls; carboxylate anions, carbonyl hydrides and metal nitrosyl compounds.
(d) Complexes with aromatic systems, synthesis, structure and bonding in metal olefin complexes, alkyne complexes and cyclopentadienyl complexes; coordinative unsaturation, oxidative addition reactions, insertion reactions, fluxional molecules and their characterization. Compounds with metal-metal bonds and metal atom clusters.
13. General chemistry of block elements
Lanthanides and actinides; separation, oxidation states, magnetic and spectral properties; lanthanide contraction.
14. Non-Aqueous Solvents
Reactions in liquid NH3, HF, SO2 and H2 SO4. Failure of solvent system concept, coordination model of non-aqueous solvents. Some highly acidic media, fluorosulphuric acid and super acids.
Paper – II
1. Delocalised covalent bonding:
Aromaticity, anti-aromaticity; annulenes, azulenes, tropolones, kekulene, fulvenes, sydnones.
2. (a) Reaction mechanisms:
General methods (both kinetic and non-kinetic) of study of mechanism or organic reactions illustrated by examples use of isotopes, cross-over experiment, intermediate trapping, stereochemistry; energy diagrams of simple organic reactions transition states and intermediates; energy of activation; thermodynamic control and kinetic control of reactions.
(b) Reactive intermediates:
Generation, geometry, stability and reactions of carbonium and carbanium ions, carbanions, free radicals, carbenes, benzynes and niternes.
(c) Substitution reactions:
SN1, SN2, SNi, SN1, SN2, SNi and SRN1 mechanisms; neighbouring group participation; electrophilic and nucleophilic reactions of aromatic compound including simple heterocyclic compounds pyrrole, thiophene, indole.
(d) Elimination reactions:
E1, E2 and E1cb mechanisms; orientation in E2 reactions Saytzeff and Hoffmann; pyrolytic syn elimination acetate pyrolysis, Chugaev and Cope eliminations.
(e) Addition reactions:
Electrophilic addition to C=C and C=C; nucleophilic addition to C=O, C=N, conjugated olefins and carbonyls.
Pinacol-pinacolune, Hoffmann, Beckmann, Baeyer Villiger, Favorskii, Fries, Claisen, Cope, Stevens and Wagner-Meerwein rearrangements.
3. Pericyclic reactions:
Classification and examples; Woodward-Hoffmann rules clectrocyclic reactions, cycloaddition reactions [2+2 and 4+2] and sigmatropic shifts [1, 3; 3, 3 and 1, 5] FMO approach.
4. Chemistry and mechanism of reactions:
Aldol condensation (including directed aldol condensation), Claisen condensation, Dieckmann, Perkin, Knoevenagel, Witting, Clemmensen, Wolff- Kishner, Cannizzaro and von Richter reactions; Stobbe, benzoin and acyloin condensations; Fischer indole synthesis, Skraup synthesis, Bischler-Napieralski, Sandmeyer, Reimer-Tiemann and Reformatsky reactions.
5. Polymeric Systems
(a) Physical chemistry of polymers: Polymer solutions and their thermodynamic properties; number and weight average molecular weights of polymers. Determination of molecular weights by sedimentation, light scattering, osmotic pressure, viscosity, end group analysis methods.
(b) Preparation and properties of polymers: Organic polymers polyethylene, polystyrene, polyvinyl chloride, Teflon, nylon, terylene, synthetic and natural rubber.Inorganic polymers phosphonitrilic halides, borazines, silicones and silicates.
(c) Biopolymers: Basic bonding in proteins, DNA and RNA.
6. Synthetic uses of reagents:
OsO4, HIO4, CrO3, Pb(OAc)4, SeO2, NBS, B2H6, Na- Liquid NH3, LiAlH4, NaBH4 n-BuLi, MCPBA.
Photochemical reactions of simple organic compounds, excited and ground states, singlet and triplet states, Norrish-Type I and Type II reactions.
8. Principles of spectroscopy and applications in structure elucidation:
(a) Rotational spectra diatomic molecules; isotopic substitution and rotational constants.
(b) Vibrational spectra diatomic molecules, linear triatomic molecules, specific frequencies of functional groups in polyatomic molecules.
(c) Electronic spectra: Singlet and triplet states; application to conjugated double bonds and conjugated carbonyls Woodward-Fieser rules.
(d) Nuclear magnetic resonance: Isochronous and anisochronous protons; chemical shift and coupling constants; Application of 1H NMR to simple organic molecules.
(e) Mass spectra : Parent peak, base peak, daugther peak, metastable peak, fragmentation of simple organic molecules; cleavage, McLafferty rearrangement.
(f) Electron spin resonance : Inorganic complexes and free radicals.
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IFS Exam Fee Candidates applying excepting Female SC ST PH candidates who are exempted from payment of fee for Civil Services Preliminary Examination are required to pay a fee of Rs - Applicants can pay examination fee either by depositingMore Details >>
Name of Commission Union Public Service Commission Job Type Central Government Job Name of the Post Indian Forest Service Mode of Application Online Official page nbsp www upsc gov in Total No of Posts nbspMore Details >>
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