BASIC CHEMISTRY: PRACTICE QUESTIONS (CHEMICAL BONDINGS)

1.       1.  Draw the Lewis diagram indicating the formation of covalent bonds for the following compounds:

(a)    SO₄^2-

(b)   CO₃^2-

(c)    NO₃^-

(d)   HCN

                 

1.       2.  Write the Lewis structure for nitric acid in which three atoms of O are bonded to the central N atom and the ionizable H atom is bonded to one of the O atoms.

 

3.  Describe the hybridization processes for beryllium hydride, phosphorus trifluoride and aluminum triiodide.