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Lalit Narayan Mithila University, Darbhanga B.Sc. part-1 Chemistry Honours paper syllabus –

Paper – I, and Paper – II

LNMU B.Sc. part-1 Chemistry honours syllabus
B.Sc. part-1 Chemistry Honours syllabus

Time- 3 hours
Full marks- 75

Physical and inorganic chemistry

Ten Questions to be set. One question is compulsory which is a very short answer type covered from the whole syllabus. Five to be answered at least one from each group.


Physical Chemistry

1. Gaseous state: Postulates of the kinetic theory of gases. Kinetic gas equation. RMS Average and most probable velocities. Deviation from idealists, Vander Waal’s equation of states. Critical phenomenon- critical constants of gas, the relationship between critical constants and Vander Waal’s constant. Law of corresponding states. Reduced equation of states. Liquidification of gases, Boyle’s Temperature.

2. Solid State: Types of solids, Types of crystals and forces there in Law of crystallography. Crystal Lattices. Space Lattice, Unit Cell. Radius ratio rule. Co-ordination number. Miller & Weiss Indices X-Ray diffraction by crystals, Bragg’s Equation. Crystal structure of NaCl and KCI.

3. Colloidal State: Difference amongst the true solution, Colloidal Solution and Suspension, Difference between Lyophilic and Lyophobic Colloids, Kinetic optical and electrical properties of Colloids. Stability of Colloids, Hardy Schulz Law. Coagulation, Gold Number, Peptisation, Dialysis. Sols, Emulsions and Gels. Application of colloids.


Inorganic Chemistry 

1. Atomic Structure: Idea of de Broglie matter waves. The Heisenberg uncertainty principle, Schrodinger wave equation, the significance of wave functions. Atomic orbitals, Quantum numbers, Aufbau and Paulis exclusion principles. Hund’s multiplicity rule. Variation of orbital energies with atomic number and energy level diagram, electronic configuration of elements, effective nuclear charge and shielding, radial and angular wave functions and distribution curves. The shape of the spad. Orbitals and their characteristics. Thomson’s & Mullican’s method for determination of charge of an electron

2. Periodic Properties: The electronic layout of the elements in P. T classification atomic and ionic radii, ionization energy, electrode potential (use of redox potential reaction feasibility), electron affinity and electronegativity-definition, methods of determination or evaluation, trends in periodic table and applications in predicting and explaining the chemical behavior.
3. Chemical Bonding:-
(i) Ionic Bond: Types of ionic solids, radius ratio effect and coordination number, limitations of radius ratio. Lattice defects. Lattice energy and Born-Haber cycle, solvation energy and solubility of ionic solids. polarizing power and polarizability, Fagan’s rules

(ii) Covalent Bond: Valence bond theory and its limitations, directional characteristics of the covalent bond, various types of hybridization and shapes of simple in molecules and ions such as NH, H1o. SFA, CIF, ICI, and H,0 by valence shell electron pair theory, a linear combination of atomic orbitals repulsion (VSEPR) e-nonbonding and antibonding molecular orbitals. (LCAO), bonding Applications of Mo theory to explain the stability of home and hetero diatomic molecules, multi-center bonding in electron- dinuclear deficient molecules B2H6

(iii) Bond Energy: Dissociation and average bond energies determination. Periodic trends and applications. Metallic Bond. Free electron, valence bond, and band theories. Weak Interactions Hydrogen Bond-experimental evidence, Vander Waal’s forces.

4. s Block Elements: (i) Hydride 

5. p-Block Elements: Comparative study (Group-wise) of group 13 & 14 elements with respect to periodic properties.Compounds such as hydrides, halides, oxides, and oxyacids diagonal relationship. Preparation, properties, Preparation, properties and technical applications of carbides and fluorocarbons, Silicons and structural principles of silicates.

(ii) Ozone: Preparation, properties uses and structure, and the ozone layer.

(iii) Boron: occurrence, extraction, properties-Compounds-diborane. borazine, alkali metal borohydrides.

(iv) Tin & Lead: Occurrence, Metallurgy (Extraction), properties use and important compounds including while Lead. Read Lead. Deadening of Tin, Analytical Test of Sn+2, Sn+4.

(v) Noble Gas Discovery: Isolation, Separation Chemical properties and uses of Xenon and its compounds (Elementary Ideas).
6. Air Pollution and its control.


Time – 3 hours
Full marks – 75

Physical and organic chemistry.

10 questions to be set. Which is a very short answer type covered from the whole syllabus. 5 to be answered at least one from each group.


Physical chemistry

1. Solutions (Colligative Properties): Type of solutions-Ideal and Non-ideal Solutions. Raoult’s Law for the dilute solution. Deviation of Non-ideal Solutions from ideality. Lowering of Vapour Pressure. Elevation of boiling point. Depression of freezing point Determination of Molecular Weight of Solutes using these colligative properties. Osmosis and Osmotic Pressure its experimental determination. The relation between Osmotic Pressure. Concentration and Temperature. Abnormal Molecular Weight.

2. Ionic Equilibrium: Modern Concepts of Acids and Bases. Arrhenius Theory of Acid and Base. Bronsted and Lewis’s theory. Ionic Product of water pH, poH and pKn, Buffer solution, Henderson’s Equation. Solubility Product and its application in qualitative analysis.

3. Chemical Kinetics: Molecularity and order of reaction, Kinetics of first and second-order reactions Half-life period for the first and second-order reactions. Kinetics of decomposition of H,0,. Inversion of Cane sugar and hydrolysis of esters. Zero-order reactions. Determination of order of reactions.


Organic chemistry

1. Bonding and General Concepts: Tetravalency of carbon, Isomerism structure & Stereo Isomerism elementary idea, Nomenclature of the fused ring system, Spiro compound, bridge boded compounds, cyclic and polycyclic compounds, Bond energy. Bond length, Bond angle, Hydrogen bond, and hybridization.

2. Reactions mechanism: Inductive effect, Electromeric effect Mesomeric effect, Hyperconjugation. Fission, types of reagent Reaction and its types-Substitution, Addition and Elimination reactions with the mechanism-Simple and elementary idea.

3. Polyhydroxy Compounds: Glycol, Glycerol, isolation, chemical method of preparations. Properties, structure, and identification, pinacol-pinacolone rearrangement. Periodic acid, oxidation of Glycol & Glycerol.

4. Amines and Urea: Amines. Classification. Preparation, properties. Uses and test aliphatic and aromatic amines. Preparation properties and uses, Hofmann’s Bromamide reaction, Carbylamine reactions Diazoreaction. Diazo-coupling reaction. Urea Preparation, properties. Uses. Bitrate test, the structure of urea. Estimation of urea in a given sample.

5. Aldehyde & Ketones: Structure of the carbonyl group. Preparation. Properties and uses. Aldol condensation. acetal formation. Cannizaro’s reaction. Clemenson reduction. Wolf Kishner reduction. Popoff’s rule. Acidic properties and reactivity of aldehyde and ketones.

6. Carboxylic acid and derivatives: Structure, Acid strength preparation, properties and uses of carboxylic acid, ester acid chloride anhydrides. Hell vol hard Zelinsky reaction Decarboxylation of acid.

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LNMU B.Sc. part-1 Chemistry subsidiary paper syllabus

Lalit Narayan Mithila University, Darbhanga B.Sc. part-1 chemistry (subsidiary) syllabus
Time- 3 hours
Full marks- 75
Pass marks- 23
One question is compulsory which will be a very short answer type. Five questions in all to be answered, at least one question from each group to be answered.


1. Gaseous state: Equation of state. Postulates of the kinetic theory of gas and kinetic equation of gas. RMS average and most probable velocity. Deviation from ideality. Vander Waal’s constant. Ideal gas.

2. Chemical Kinetics: Rate of reaction, factors affecting the rate of reaction or Molecularity and order of the reaction. First and Second order reaction. Half-Life Activation energy.

3. Chemical Equation: Law of Mass action. Equilibrium constant (Kp. Ke & Kx) i. e. Chaterllier’s principle, Relationship between Kp, Kc & kx.

4. Colloidal State: Classification, Preparation of Colloidal Solution. Purification (Dialysis) Protective colloid. Gold no. Emulsion, Stability of Colloids optical and electrical properties, coagulation Hardy-Schulz Law.


1. Structure of Atom: Isotope, Isobar & Isotone, J. J. Thomson & Mullican’s oil drop methods of determining the charge of an electron Rutherford’s model. Bohr Model and defect. Correction. Theory of Atomic Spectra. Alba Principle, Pauli Exclusion The principle, Quantum no. Hund’s Rule. Electronic Configuration writing for atom & ions.

2. Periodicity: Electronic layout of the P.T. classification of elements Periodicity Atomic radii. Ionic radii, Ionization Potential & Energy Electron affinity. Electronegativity, Modern periodic table. The naming of elements having atomic no. more than one hundred, Merit demerits of P.T.

3. Chemical Bonding: Hydrogen bond, Metallic bond, Fagan’s rule, Valence bond theory, Hybridisation, and shape and structure of simple covalent molecules and ions VSEPR Theory.

4. Chemistry of the elements: Occurrence metallurgy, General Characteristic, General Chemistry, and important compounds of Ag Au, Sn, Pb, and B.


1. General concepts of Hybridization: Shape and structure of simple organic compounds & ions. Tetravalent of carbon Fission and its kinds. Reaction and its type, reagents & types. General Idea of inductive effect: Mesomeric effect & hyper Conjugation.

2. Alcohol: Classification, Nomenclature, Dihydric & Trihydric Alcohol-Glycol, Glycerol General Method of preparation. Properties & uses. Their occurrence and isolation, Structure of Glycerol.
3. Aldehydes, Ketones & Carboxylic acid: General methods of Synthesis. Properties and uses. Difference between Aldehyde & Ketones. Reactivity and acid characters of Aldehyde and ketones. Strength of carboxylic acids, preparation of acid derivatives.

4. Amines & Urea: Structure, Nomenclature effect due to substituents classification and separation of amine mixture (primary. secondary & tertiary) the basic strength of amines, methods of synthesis. Properties & Urea-Preparation, Properties, & Uses.