pscwb.org.in Assistant Master, Mistress In Chemistry Syllabus : West Bengal Public Service Commission
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Announcement : Syllabus
Designation : Assistant Master/Mistress In Chemistry
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Assistant Master/Mistress In Chemistry Syllabus :
Group – A : Organic Chemistry
1. Bonding in organic molecules :
σ and π bonds, bond distance, bond angle, and bond energy. Dipole moment of organic molecules. Inductive, resonance and hyperconjugative effect. Hydrogen bond.
Related : Syllabus for Lecturer in Life Science West Bengal Public Service Commission : www.syllabus.gen.in/1286.html
Tautomerism, Aromaticity, Huckel’s rule, aromatic, non aromatic and anti aromatic compounds. Effects of structure, substituents and solvent on acid and base strength.
2. Stereo Chemistry of carbon compounds :
Elements of symmetry. Chirality, Eanantiomerism and diastereo isomerism. Optical purity, racemization, resolution. Projection structure of stereoisomers – Fischer, Sawhorse, Newman, Flying – wedge DL, RS and EZ notations.
Examples of enantiotopic and diastereotopic ligands and faces. Conformations of alkanes (upto 4 carbon), Cyclohexane, dimethylcyclohexanes and 1, 2 – glycols. Stereoisomerism in allenes and biphenyls (excluding RS notation).
3. Reaction mechanism :
General methods of study of mechanism of organic reactions illustrated by examples – use of isotopes, cross-over experiement, intermediate trapping, kinetic studies, stereochemistry. Energy profile diagrams of simple organic reactions, thermodynamic and kinetic control of reactions.
4. Reactive intermediates :
Generation, geometry, stability and reactions of carbocations, carbanions, free radicals, carbenes and benzynes.
5. a) Substitution reaction – SN1 , SN2, SNi and NGP. Electrophilic and nuclephilic substitution of aromatic compounds.
b) Elimination reaction – E1, E2, E1CB and Syn – elimination.
c) Addition reaction – electrophilic addition to C=C and C≡C, nucleophilic addition to C=O, conjugated olefins and carbonyls.
d) Rearrangement reaction : Pinacol-pinacolone, Hofmann, Beckmann, Claisen, Baeyar-Villiger, Favorskii.
6. Chemistry and mechanism of : Aldol condensation, Claisen condensation, Perkin reaction, Knoevenagel reaction, Wittig reaction, Michael reaction Arndt Eistert reaction, Acyloin condensation, Friedel-Craft reaction and Von Richter reaction.
7. Synthetic uses of reagents : OsO4, HIO4, Pb(OAc)4, SeO2, LiAlH4, NaBH4, B2H6, NBS, PCC, Na or Li in liq-NH3, Alkyl lithium, Lithium dialkylcuprate, Lithium diisopropylamide, Aluminium isopropoxide.
8. IUPAC nomenclature. Synthesis and reactions of alkanes, alkenes, alkynes, alkyl halides, ethers, alkanols, alkanals, alkanones, alkanoic acids, esters, amides, nitriles and amines.
9. Pericyclic reaction : Definition and classification. FMO approach of electrocyclic, cycloaddition reactions and sigmatropic H-shifts.
10. Basic principles and applications of UV, IR, and NMR spectroscopy of simple organic molecules. Road-map problems related to spectroscopy and organic reactions.
Group – B : Inorganic Chemistry
1. Chemical bonding :
a) Ionic bonding ; polarizing power and polarizability, ionic potential, Fajan’s rules.
b) Covalent bonding : Lewis structures, VSEPR theory, Valence Bond theory (Heitler-London approach), Directional character of covalent bonds, hybridization, Bent’s rule, concept of resonance.
Molecular orbital theory (MO) elementary approach – sigma and pi bonds, multiple bonding, MO diagrams of simple homonuclear and heteronuclear diatomic molecule, simple triatomic molecules like BeH2, CO2, BF3, bond order, bond energy.
Shapes of the molecules and ions containing lone pairs and bond pair.
c) Weak Chemical forces : Vander Waals forces; Hydrogen bonding, Effects of chemical forces on physical properties.
d) Metallic bonding : Qualitative ideas of band theory, Conducting, Semiconducting and insulating properties.
2. Chemical periodicity :
a) Periodic Table : Classification of elements on the basis of electronic configuration, Modern periodic Table (current IUPAC version).
b) Atomic and ionic properties : Effective nuclear charge, screening effect, Slater rules, atomic radii, ionic radii, covalent radii, ionization energies, electron affinity, electro-negativity, inert pair effect.
3. Acid-Base Concepts : Bronsted and Lowry’s concept, Lewis concept, HSAB principle.
4. Non-aqueous solvents : Liquid ammonia and liquid sulphur dioxide.
5. Coordination Compunds : Double and complex salts, Werner’s theory, Chelate complexes, nomenclature of complex compound, stereo chemistry and coordination number, isomerism of coordination compounds – geometrical and optical isomers in respect of coordination numbers 4 and 6.
Bonding in coordination compounds : valence bond descriptions and its limitations, crystal field theory (elementary). Crystal field stabilization energies in weak and strong field cases mainly of octahedral and tetrahedral complexes.
6. Magnetism and Colour : Origin of magnetic moments, paramagnetism, diamagnetism, ferro and antiferromagnetism, orbital and spin contributions, spin only moments of 3dn ions. Theoretical aspects of d-d spectra (elementary idea) selection rules for spectral transitions.