Thursday, 19 January 2012

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CHEMISTRY SYLLABUS POST OF FOREST RANGE OFFICERS

CHEMISTRY SYLLABUS


SECTION-A: (INORGANIC CHEMISTRY):

1.1 Atomic structure:  Schrodinger wave equation, significance of Ψ and Ψ2 quantum numbers and  their  significance,  radial  and  angular  probability,  shapes  of  orbitals,  relative  energies  of atomic orbitals as a function of atomic number.  Electronic configurations of elements; Aufbau principle, Hund’s multiplicity rule, Pauli exclusion principle.

1.2 Chemical periodicity:    Periodic  classification  of  elements,  salient  characteristics  of  s,p,d and  f  block  elements.    Periodic  trends  of  atomic  radii,  ionic  radii,  ionization  potential,  electron affinity and electro-negativity in the periodic table.

1.3 Chemical bonding:    Types  of  bonding,  overlap  of  atomic  orbitals,  sigma  and  pi-bonds, hydrogen and metallic bonds.  Shapes of molecules bond order, bond length, V.S.E.P.R. theory and bond angles.  The concept of hybridization and shapes of molecules and ions.

1.4 Oxidation states and oxidation number:    Oxidation  and  reduction,  oxidation  numbers, common  redox  reactions,  ionic  equations.    Balancing  of  equations for  oxidation  and  reduction reactions.

1.5 Acids and bases:  Bronsted and Lewis theories of acids and bases.  Hard and soft acids and bases.  HSAB principle, relative strengths of acids and bases and the effect of substituents and solvents on their strength.

1.6 Chemistry of elements:
i)  Hydrogen:    Its  unique  position  in  the  periodic  table,  isotopes,  ortho  and  para hydrogen, industrial production, heavy water.
ii)  Chemistry  of  ‘s’  and  ‘p’  block  elements:    Electronic  configuration,  general characteristics  properties,  inert  pair  effect,  allotrophy  and  catenation.    Special emphasis  on  solutions  of  alkali  and  alkaline  earth metals  in  liquid  ammonia. 
Preparation,  properties  and  structures  of  boric  acid,  borates,  boron  nitrides, borohydride (diborane), carboranes, oxides and oxyacids of nitrogen, phosphorous, sulphur  and  chlorine;  interhalogen  compounds,  polyhalide  ions,  pseudohalogens, fluorocarbons and basic properties of halogens.  Chemical reactivity of noble gases, preparation, structure and bonding of noble gas compounds.
  
iii)  Chemistry of ‘d’ block elements:  Transition metals including lanthanides, general characteristic  properties,  oxidation  states,  magnetic  behaviour,  colour.    First  row transition  metals  and  general  properties  of  their  compounds  (oxides,  halides  and sulphides); lanthanide contraction.

1.7 Extraction  of  metals:    Principles  of  extraction  of  metals  as  illustrated  by  sodium, magnesium, aluminum, iron, nickel, copper, silver and gold.

1.8 Nuclear Chemistry:    Nuclear  reactions;  mass  defect  and  binding  energy,  nuclear  fission and fusion.  Nuclear reactors; radioisotopes and their applications.

1.9 Coordination  compounds:    Nomenclature,  isomerism  and  theories  of  coordination compounds and their role in nature and medicine.

1.10 Pollution and its control:    Air  pollution,  types  of  air  pollution,  control  of  air  and  water pollution, radioactive pollution.

SECTION-B: (ORGANIC CHEMISTRY): 

2.1 Bonding and shapes of organic molecules:    Electronegativity,  electron  displacements-inductive, mesomeric and hyperconjugative effects; bond polarity and bond polarizability, dipole moments of organic molecules; hydrogen bond; effects of solvent and structure on dissociation constants  of  acids  and  bases;  bond  formation,  fission  of  covalent  bonds;  homolysis  and heterolysis;  reaction  intermediates-carbocations,  carbanions,  free  radicals  and  carbenes; generation geometry and stability; nucleophiles and electrophiles.

2.2 Chemistry  of  aliphatic  compounds:  Nomenclature  alkanes-synthesis,  reactions  (free radical  halogenation)  –  reactivity  and  selectivity,  sulphonation-detergents;  cycloalkanes-Baeyers’  strain  theory;  alkanes  and  alkynes-synthesis,  electrohilic  addition;  reactions, Markownikov’s  rule,  peroxide  effects,  1-3-dipolar  addition;  nucleophilic  addition  to  electron-deficient  alkenes;  polymerization;  relative  acidity;  synthesis  and  reactions  of  alkyl  halides, alkanols, alkanals, alkanones, alkanoic acids, esters, amides, nitriles, amines, acid anhydrides, αβ -unsatuarated ketones, ethers and nitro compounds.

2.3 Stereochemistry  of  carbon  compounds:    Elements  of  symmetry,  chiral  and  achiral compounds.    Fischer  projection  formulae;  optical  isomerism  of  lactic  and  tartaric  acids, enantiomerism and diastereo-isomerism; configuration (relative and absolute); conformations of alkanes upto four carbons, cyclohexane and dimethylcyclo-hexanes their potential energy D,L and R,S notations  of  compounds  containing  chiral  centers;  projection  formulae-Fischer, Newman  and  sawhorse  of  compounds  containing  two  adjacent  chiral  centers;  meso  and  dl-isomers,  erythro  and  threo  isomers;  racemization  and  resolution;  examples  of  homotopic, enantiotopic and diasteretopic atoms and groups in organic compounds, geometrical isomers; E and Z notations.  Stero-chemistry of SN1, SN2,E1 and E2 reactions.

2.4 Organometallic compounds:  Preparation and synthetic uses of Grignard reagents, alkyl lithium compounds.

2.5 Active methylene compounds:  Diethyl malonate, ethyl acetoacetate. ethyl cyanoacetate-applications in organic synthesis; tautomerism (keto-enol).

2.6 Chemistry  of  aromatic  compounds:  Aromaticity;  Huckel’s  rule;  electrophilic  aromatic substitution-nitration,  sulphonation,  halogenation  (nuclear  and  side  chain),  Friedel-Crafts alkylation  and  acylation,  substituents  effect;  chemistry  and  reactivity  of  aromatic  halides, phenols, nitro, diazo, dia-zonium and sulphonic acid derivatives, benzyne reactions.

2.7 Chemistry of biomolecules:    (i) Carobhydrates:    Classification,  reactions,  structure  of glucose,  D,L-configuration,  osazone  formation;  fructose  and  sucrose;  step-up  step-down  of aldoses  and  ketoses;  and  their  interconversion,  (ii)  Amino  acids: Essential  amino  acids; zwitterions, isoelectric point, polypeptides; proteins; methods of synthesis of α-amino acids.  (iii) Elementary idea of oils, fats, soaps and detergents.

2.8 Basic principles and applications of UV, visible, IR and NMR spectroscopy of simple organic molecules.

SECTION-C: (PHYSICAL CHEMISTRY):  

3.1 Gaseous state:  Deviation of real gases from the equation of state for an ideal gas, Vander Waals  and  Viril  equation  of  state,  critical  phenomena,  principle  of  corresponding  states, equation  for  reduced  state.    Liquification  of  gases,  distribution  of  molecular  speed,  collisions between molecules in a gas; mean free path, specific heat of gases.


3.2 Thermodynamics:  
(i)  First Law and its applications:    Thermodynamic  systems,  states  and  processes work, heat and internal energy, zeroth law of thermodynamics, various types of work done on a system in reversible and irreversible processes.  Calorimetry and thermo-chemistry,  enthalpy  and  enthalpy  changes  in  various  physical  and  chemical processes,  Joule-Thomson  effect,  inversion  temperature. Heat  capacities  and temperature dependence of enthalpy and energy changes.
(ii)  Second Law and its applications:  Spontaneity of a process, entropy and entropy changes in various processes, free energy functions, criteria for equilibrium, relation between equilibrium constant and thermodynamic quantities.

3.3 Phase rule and its applications:  Equilibrium between liquid, solid and vapours of a pure substance, Clausius-Clapeyron equation and its applications.  Number of components, phases and degrees of freedom; phase rule and its applications; simple systems  with one (water and sulphur)  and  two  components  (lead silver,  salt  hydrates).    Distribution  law,  its  modifications, limitations and applications.

3.4 Solutions:  Solubility and its temperature dependence, partially miscible liquids, upper and lower critical solution temperatures, vapour pressures of liquids over their mixtures, Raoult’s and Henry’s law, fractional and steam distillations.

3.5 Colligative  Properties:    Dilute  solutions  and  colligative  properties,  determination  of molecular weights, using colligative properties.

3.6 Electro-chemistry:    Ions  in  solutions,  ionic  equilibria,  dissociation  constants  of  acids  and bases, hydrolysis, pH and buffers, theory of indicators and acid base titrations.  Conductivity of ionic  solutions,  its  variation  with  concentration, Ostwald’s  dilution  law,  Kohrausch  law  and  its application.   Transport  number  and  its  determination.    Faraday’s  laws  of electrolysis,  galvanic cells and measurements of their e.m.f., cell reactions, standard cell, standard reduction potential Nernst  equation,  relation  between  thermodynamic  quantities  and  cell  e.m.f.,  fuel  cells, potentiometric titrations.

3.7 Chemical kinetics:  Rate of chemical reaction and its dependence on concentrations of the reactants, rate constant and order of reaction and their experimental determination; differential and  integral  rate  equations  for  first  and  second  order  reaction,  half-life  periods;  temperature dependence  of  rate  constant  and  Arrhenius  parameters;  elementary  ideas  regarding  collision and transition state theory.

3.8 Photochemistry:    Absorption  of  light,  laws  of  photochemistry,  quantum  yield,  the  excited state  and  its  decay  by  radiative,  non radiative  and  chemical  pathways;  simple  photochemical reactions.

3.9  Catalysis:    Homogeneous  and  heterogeneous  catalysis  and  their  characteristics, mechanism  of  heterogeneous  catalysis;  enzyme  catalysed  reactions  (Michaelis-Menten mechanism)

3.10 Colloids:    The  colloidal  state,  preparation  and  purification  of  colloids  and  their characteristics  properties;  lyophilic  and  lyophobic  colloids  and  coagulation;  protection  of colloids; gels, emulsions, surfactants and micelles.






 



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