Theoretical basics of Inorganic chemistry

1.      Write a Lewis structure for the NH₃, Br₂, N₂H₄.

2.      What types of bonds can be used to describe the chemical bonds in BF₄^- ?

3.      Which is the most polar bond: C - S, C - P, P - O, or O - F?

4.      Write a plausible Lewis structure for cyanogen, C₂N₂, a poisonous gas used as a fumigant and rocket propellant.

5.      Describe the phosphine molecule, PH₃ by the valence-bond method.

6.      Write the electron configuration for BN, and determine the bond order.

7.      A molecule in which sp² hybrid orbitals are used by the central atom in forming covalent bonds is a) PCl₅; b) N₂; c)SO₂; d)He₂.

8.      Describe the bonding in H₂O according to valence bond theory. Assume that the molecular geometry is the same as given by the VSEPR model.

9.      Give the orbital diagram of the O₂ molecule. Is the molecular substance diamagnetic or paramagnetic? What is the electron configuration? What is the bond order of O₂?

10.  Write the orbital diagram for nitrogen monoxide (nitric oxide), NO. What is the bond order of NO?