CHM-301 principle of inorganic chemistry Important Questions : 1. Explain the Bohr model of the hydrogen atom. 2. Define quantum numbers and explain their significance. 3. State and explain Pauli’s exclusion principle, Hund’s rule, and Aufbau principle. 4. Write the electronic configuration of transition elements and explain exceptions in Cr and Cu. 5. Describe VSEPR theory and predict the shapes of NH3, H2O, and BF3 molecules. 6. Define hybridization and explain sp, sp2, and sp3 hybridizations with examples. 7. Discuss different types of acids and bases according to Arrhenius, Bronsted-Lowry, and Lewis theories. 8. Explain periodic trends in atomic size, ionization energy, and electron affinity. 9. Describe the preparation, properties, and uses of HCl and NH3. 10. Explain coordination compounds and the concept of ligands.