Chemistry 2430 Quiz #1 - 10 points - Dr. Howard Black - January 19, 1999

Name_________KEY_________________

1. Draw an accurate Lewis structure for the following molecules, including all nonbonded electron pairs and formal charges, and provide the bond angle around each central atom.
 

a. nitrogen trichloride (NCl3):
b. carbon dioxide:
c. sulfur dioxide:

2. (2 pts) Consider the three molecules in the box. Which molecule has the shortest carbon-carbon bond length?
 
(answer:)____acetylene_________

Which molecule has the greatest number of p electrons?

(answer:)____acetylene_________

3.Indicate the hybridization (sp3, sp2, or sp) of every atom (except hydrogen and chlorine) in each structure in question 1. Use an arrow pointing to each atom to make your assignments, for example: