Bsc Semester 1 Chemistry Major 1 Important Questions || Bsc 1st year chemistry скачать в хорошем качестве

Bsc Semester 1 Chemistry Major 1 Important Questions || Bsc 1st year chemistry

Bsc Semester 1 Chemistry Major 1 Important Questions || Bsc 1st year chemistry #inorganicchemistry Course Content: 1. Atomic Structure: Bohr’s theory, its limitations and atomic spectrum of hydrogen atom. Wave mechanics: de Broglie equation, Heisenberg’s Uncertainty Principle and its significance, Schrödinger’s wave equation, significance of ψ and ψ 2 . Quantum numbers and their significance. Normalized and orthogonal wave functions. Sign of wave functions. Radial and angular wave functions for hydrogen atom. Radial and angular distribution curves. Shapes of s, p, d and f orbitals. Contour boundary and probability diagrams. Pauli's Exclusion Principle, Hund's rule of maximum multiplicity, Aufbau's principle and its limitations, Variation of orbital energy with atomic number. (12 Lectures) 2. Periodicity of Elements: The long form of periodic table, s, p, d and f - block elements, Detailed discussion of the following properties of the elements, with reference to s & p-block. a. Effective nuclear charge, shielding effect, Slater rules, variation of effective nuclear charge in periodic table. b. Atomic radii (van der Waals) c. Ionic and crystal radii. d. Covalent radii e. Ionization enthalpy, Successive ionization enthalpies and factors affecting ionization energy. Applications of ionization enthalpy. f. Electron gain enthalpy, trends of electron gain enthalpy. g. Electronegativity- Pauling, Mullikan and Allred Rochow scales, electronegativity and polarisation of bonds. (12 Lectures) 3. Chemical Bonding: (i) lonic bond: Ionic bond- general characteristics of ionic compounds, radius ratio rule and its limitations. Packing of ions in crystals. Born-Lande equation, expression for lattice energy, Madelung’s constant, Born-Haber cycle and its applications, Solvation energy. (4 Lectures) (ii) Covalent bond: Lewis structure, Valence Shell Electron Pair Repulsion Theory (VSEPR), Shapes of simple molecules and ions, multiple bonding, sigma and pi-bond approach, Valence Bond theory, (Heitler-London approach). Hybridization containing s, p and s, p, d atomic orbitals, shapes of hybrid orbitals, Bent’s rule, Resonance and resonance energy, Molecular orbital theory. Molecular orbital diagrams of simple homonuclear and heteronuclear diatomic molecules N2, O2, C2, B2, F2, CO, NO, and their ions; Covalent character in ionic compounds- polarizing power and polarizability, Fajan rules, Ionic character in covalent compounds: Bond moment and dipole moment, Ionic character from dipole moment and electronegativities. (12 Lectures) (iii) Metallic Bond: Qualitative idea of free electron model, Molecular orbital theory/Band theory and explanation of Conductors, Semiconductors & Insulators with examples. (6 Lectures) (iv) Weak Chemical Forces: van der Waals forces, ion-dipole, dipole-dipole & dipole - induced dipole interactions, Lenard Jones potential, hydrogen bonding and its effects on melting point, boiling point and solubility of compounds. (6 Lectures) 4. Inorganic Polymers: Introduction, Types of inorganic polymers, comparison with organic polymers, synthesis, structural aspects and applications of Silicones and Siloxanes, Borazines, Phosphazenes and Silicates.