DIBRUGARH UNIVERSITY CHEMISTRY MAJOR SYLLABUS

                               DIBRUGARH UNIVERSITY                 

                                       

                                             SEMESTER IV

                                                           Paper: MM 401

                                                      Physical Chemistry-I

Marks: 60 (48+12 Int.)

Objective: Electrochemistry is one of the topics that really revolutionized the world nowadays.

This paper deals with this particular aspect.

Unit I – Chemical Thermodynamics II

Second law of thermodynamics, Carnot’s theorem, Carnot cycle, efficiency of heat engines,
thermodynamic scale of temperature, concept of entropy, entropy change in a cyclic, reversible,
irreversible processes, calculation of entropy changes of an ideal gas with change in P,V,T,
entropy change in physical transformation, entropy of mixing.
Helmholtz free energy (A) and Gibb’s free energy (G), variation of A and G with P,V,T, criteria
for spontaneity and equilibrium, Maxwell’s relationship, Gibb’s –Helmholtz equation.
Nernst heat theorem, consequence of the theorem, third law of thermodynamics, and its
verification. Determination of absolute entropies of pure substance. L-15, Marks: 12
Unit II – Conductance
Arrhenius theory of electrolytic dissociation, conductivity, equivalent and molar conductivity
and their variation with dilution for weak and strong electrolytes, molar conductivity at infinite
dilution, kohlrausch law of independent migration of ions, Debye-Huckel - Onsagar equation,
Wien effect, Debye -Falkenhagen effect,Walden’s rules.
Ionic velocities, mobilities and their determinations, transference numbers and their relation to
ionic mobilities, determination of transference numbers using Hittorf and moving boundary
methods, anomalous transference number, application of conductance measurement: i) degree of
dissociation of weak electrolytes ii) ionic product of water iii)solubility and solubility product of
sparingly soluble salts iv) Hydrolysis constant of aniline hydrochloride, v) Conductometric
titration (Acid Base and precipitation).

L-20, Marks: 20

Unit III- Electrochemical cells

Quantitative aspects of Faraday’s laws of electrolysis, concept of oxidation/reduction of half
cells potentials, application of electrolysis in metallurgy and industry, electrolytic and galvanic
cells, E.M.F of a cell and its measurement, free energy, entropy and enthalpy of cell reactions,
Nernst equation, standard electrode potential, types of electrodes- Hydrogen, calomel,
quinhydron and glass electrodes. Concentration cell with and without transference-liquid
junction potential, pH determination using hydrogen, SbO/Sb2O3 electrode, glass, quinhydron
electrodes, potentiometric titration (acid, base and redox), storage cells- Lead storage cell,
mechanism of charging and discharging, fuel cells- hydrogen-oxygen cell.

L-15, Marks: 16

Text Books

Physical Chemistry:
Physical Chemistry- G.W. Castellan, Narosa Publishing House, New Delhi.
Physical Chemistry- P.C. Rakshit, Science Book Agency, Kolkata
Physical Chemistry-Vols. I, II, III and IV – K.L. Kapoor, MacMillan (India)
Ltd., New Delhi
Advanced Physical Chemistry – J.N. Gurtu & H. Snehi, Pragati Prakashan.
Ref. Books:
Physical Chemistry, P.W. Atkins, Oxford University Press
Physical Chemistry – B.R. Puri, L.R. Sharma, Madan S. Pathania, Shobanlal
Nagin, S. Chand & Co.
Physical Chemistry – D.S. Pahari (Vol. I & II)

                                      Paper: MM 402

                                                       Physical Lab.

Marks:40 (32+8 Int.)

Physical Chemistry experiment (any two)

1) To determine the coefficient of viscosity of solutions by Ostwald viscometer.
2) To determine the surface tension of solutions by Stalagmometer.
3) Potentiometric titrations
(i) Strong acid- strong base
(ii) Weak acid-strong base
4) Preparation of buffer solutions
(i) Sodium acetate - acetic acid
(ii) Ammonium chloride-ammonium hydroxide
Measurement of pH of buffer solutions and comparison of the values with
theoretical values Marks -14×2
5) Determination of Molar mass of substance by Rast’s method.
Viva voce – Marks: 4
Internal Assessment - Marks: 8

                                          Paper: MM 403

                                                   Organic Chemistry-II

Marks: 60 [48 + 12-Int.]

Objective: 

This paper deals with active methylene compounds, aliphatic and aromatic amines

and heterocyclic compounds

Unit-I
Active Methylene Compounds

: Keto-enol tautomerism, Preparation and properties of Aceto
acetic ester and diethyl malonate. Knoevenagel Condensation. L-8, Marks- 6

Unit-II Nitrogen containing functional groups:

Aliphatic and aromatic Amines: Effect of
substituent and solvent on basicity. Preparation and properties: Gabriel Phthalimide synthesis
and Hoffmann bromamide degradation, carbylamines reaction, Mannich Reaction, Hoffmann’s
Exhaustive methylation, Hoffmann-Elimination Reaction.
Distinction between 1, 2 and 3 amines with Hinesburg reagent and nitrous acid.
Nitro and nitroso compounds, Nitriles and isoritriles, cyanates and isocyanates: Preparation and
important reactions.
Diazomethane and diazoacetic ester with synthetic application.
Diazonium salts: Preparation and their synthetic applications. L-8, Marks-10

Unit-III
Amino acids and proteins.

Amino Acids and their classification, synthesis and Ionic properties, Reactions, Zwitter ions, pka
values, isoelectric point & electrophoresis.
Study of peptides: Determination of their primary structure: end group analysis, Principles of
peptide synthesis.
Proteins: Their classification and biological importance. Elementary idea on Primary,
Secondary, Tertiary and Quaternary structure of proteins, α- helix and β-pleated sheet structure,
tertiary structure of proteins. L-10 Marks- 8

Unit-IV
Polynuclear Aromatic Hydrocarbons

Important methods of synthesis and reactions of polynuclear Aromatic-hydrocarbones:
naphthalene, arthracene and phenanthrene. Important derivatives of Naphthalene and Anthracene. 

 L-8, Marks-6

Unit – V Heterocyclic Compounds

Classification, Nomenclature and structure. Aromaticity in 5-membered and 6-membered rings
containing one heteroatom. Synthesis, reactions, properties of furan, pyrrole (Paal-knorr
synthesis), thiophene, pyridine (Hantzsch synthesis), quinoline (Skraup synthesis, Knorr
quinoline synthesis, Pfitzinger reaction) and isoquinoline (Bischler-Napieralski reaction).

 L-10, Marks: 10

Unit-VI Alkaloids

Natural occurrence, General structural features, Isolation and their physiological action.
Hoffmann’s Exhaustive Methylation with special reference to coniine, nicotine. Emde’
modification. Medicinal importance of Nicotine, Hygrine, Quinine, Morphine, Cocaine and
Reserpine.

 L-5, Marks: 8

Text Books,

1) Organic Chemistry- I. L. Finar, Vol. I & II, ELBS
2) Organic Chemistry: T.L. Morrison, R.N. Boyd and S. K. Bhattacharjee (Pearson)
3) Advanced Organic Chemistry: Reaction Mechanism & Structure – Jerry March, Wiley
Eastern.
4) Textbook of Organic Chemistry, P.S. Kalsi
Ref. Books:
1) A Guide book to Mechanism in Organic Chemistry, P. Sykes, McGraw Hill
2) Advanced Organic Chemistry - B.S. Bahl and A. Bahl
3) Organic reaction mechanism – R.K. Bansal, Tata McGraw Hill
4) Advanced General Organic Chemistry – S.K. Ghosh

                                                 Paper: MM 404

                                                     Organic Lab.

Marks: 40 (32 + 8- Int.)

A) Chromatographic separation of the following mixtures and calculation of Rf value of the
compounds.

1) Amino acids or sugars by paper chromatography Marks -15

2) Phenols or dyes by TLC Marks -12
B) Viva voce Marks -5
C) Internal assessment Marks -8