First Paper
Nine questions to be set. Five questions to be answered. Short answer type questions are recommended. There may be several parts in a question and different units may be mixed in questions. While setting questions the entire syllabus may be covered as far as practicable. Two questions to be answered from group 'A' and three questions to be answered from group 'B'
Group-A
Gaseous State:
Derivation of Van der Waal equation of state, critical phenomenon, critical constants and their evaluation in terms of van der waals constants. Determination of van der waals constants, law of corresponding states, reduced equation of states, Boyle’s temperature.
Liquid State:
Free volume of a liquid, vapour pressure, Troutons rule, Surface tension, viscosity and their measurements, Molar volume, Parachore, Rheocore and chemical constitution, Kopp’s law, internal pressure, solubility parameters, liquid crystal.
Phase Equilibria:
Phase rule and the definition of terms, involved in it, one component system. Water and sulphur system, two component system Ag-Pb, KI + water, eutectic point, Formation of compounds with congruent melting points, Deliquescence, efflorescence, triple points.
Electrical Transport:
Conductance in electrolytic solutions, Equivalent, specific and Molar conductance, cell constant, effect of dilution on conductance, Ionic mobility, migration of ions, Kohlrausch’s law, transport number and its determination by Hittorff’s methods, Applications of conductance measurements.
Group-B
Periodic Properties:
Atomic and ionic radii, ionization potential, electron affinity and electro negativity, their trends in periodic table and application in explaining and predicting the chemical behaviours.
Chemical Bonding:
Covalent Bond: V.B. theory and its limitations, Directional characteristics of covalent bond, Hybridisation and shape of inorganic molecules and ions VSEPR theory with special reference to bond and electronegativity, M.O. theory. Homonuclear and Heteronuclear diatomic molecules [CO, NO], bond strength, bond energy. Dipole moment: Percentage ionic character in HX, Molecular geometry of polyatomic molecules.
Ionic Solids: Lattice energy, Born Haber cycle, solvation energy solubility of ionic solid, polarizing power and polarizibility of ions, Fajan’s rule. Weak interactions: H-bonding and van der waals forces.
s-Block Elements:
Comparative study, diagonal relationship, hydrides, salvation and complexing tendencies, an introduction to alkyl and aryl organometallics.
p-Block Elements:
comparative study, relationship among metal, nonmetal and metalloids elements of group 13-17, elementary idea of hydrides, oxides and halides. Hydrides of boron. Diborane and Higher boranes. Borazine, boro hydrides, fullerenes.
