Chemistry Subsidiary and General B.Sc. 1st Year

B.Sc. 1st Part CHEMISTRY ( General & Subsidiary) Syllabus (BRABU Muzaffarpur)

Full Marks : 75
Time : 3 Hours
Nine questions to be set and five of them to be answered selecting not more than two questions from group A, B or C.

Group-A
Physical Chemistry (Three questions) 25 Marks

1. Gaseous State: Van der Waals' equation of state for real gases. Principle of continuity of states, relationship between critical constants and Van der Waal's constants, law of corresponding states, liquification of gases.
2. Solid State : Space lattice and unit cell, law of rational indices, distance between crystal plares, diamond and graphite structures, rutile structure, fluorite structure, coordination number, radius ratio and geometry, limitations.
3. Conductivity and E.M.F. : Types of conductivity, effect of dilutions on conductivities, cell-constant, experimental set up for measurement of conductivity. Electromotive force, electrode potential, hydrogen electrode, calomel electrode, electromotive series and its significance.
4. Liquid and Colloidal State : Structural diference between solid, liquid and gas, molar volume, surface tension, viscosity, parachore and chemical constitution, inter molecular forces, classification of colloids, preparation and properties, preparation of colloidal solutions, electrical and optial properties, coagulation, stability of colloids, emulsion, gels, soap and surface active agents.

Group-B
Inorganic Chemistry (Three questions) 25 Marks

1. Atomic Structure and Periodicity : Special features of Bohr model like quantization of energy, expression for radius and energy of orbits, Hydrogen spectrum and its interpretation, ionization energy, wave particle duality of electron and de-Broglie equation, quantization of angular momentum as a consequence of de-Broglie relation, uncertainty principle, variation of atomic and ionic radii, ionization energy, electron affinity among groups and periods, their applications in predicing and explaining chemical behaviour.
2. Structure and Shape of Molecules : Nature of covalent bond, orbital overlap, directional properties of covalent bond and hybridization, VSEPAR model for geometry of molecules/ions like Cl₂, H₂O, NH₃, CIF₃, PC1₅, polaritizing power, polarizability of ions, Fajan's rules, percentage ionic character, dipole moment and electro negativity difference.
3. Study of s-Block Elements : Comparative study and diagonal relationship of elements, meal hydrides and their properties, solvation and complex forming tendencies of ions of the elements, their importance in bio-systems.
3. Study of s-Block Elements : Comparative study and diagonal relationship of elements, meal hydrides and their properties, solvation and complex forming tendencies of ions of the elements, their importance in bio-systems.
4. Study of p-Block Elements : Comparative study including diagonal relationships of elements from groups 13 - 17, their hydrides oxides, oxy-acids and holides of important members, preparation properties and structure of diborone, borazine and borohydrides, structure of silicates, properties of halogens, interhalogens and polyhalides, preparation, properties and bonding of xenon compounds and their structure.

Group-C
Organic Chemistry (Three questions) 25 Marks

1. Idea of Electron Displacement : Electrophiles and nucleophiles, inductive, resonance and electromeric effects, strength of acids and bases on the basis of electron displacement.
2. Study of chemistry of alkanes, alkenes, alkynes, alkanols, alkanones, alkanoic acids and their derivatives, aliphatic amines, Emphasis may be given on their geometrical structures.
3. Simple treatment of geometrical and optical isomerism, E-Z nomenclature of geometrical isomers, D-, L- configurations of optical isomers.

4. Properties and synthetic uses of Grignard reagent, reformatsky reaction.

5. Estimation of N and S, Determination of molecular weight of organic acid by (a) AgCl and base (b) H₂PtCl₆ methods.

PRACTICAL
Time: 6 Hours Full Marks : 25

1. Analysis of cations and anions in given inorganic salt mixtures containing not more than four radicals. 12 Marks
2. Organic Preparation: 08 Marks
A. Acetylation of aniline and paratoluidine
B. Hydrolysis of methyl salicylate and ethyl benzoate

3.Record and viva-voca. 5 Marks

NOTES