Chapter 1. Introduction and Review
Click on the answer you think is correct. If you choose an incorrect answer, be sure to read the pop-up hint/clue before clicking on the OK button to continue. It is important to learn why you made mistakes. To try over this quiz/exercise, click on "Refresh" or "Reload" button on your browser. To go to previous or next quiz/exercise, click on the appropriate arrow.
 

1Which of the following molecules has the greatest differences in electronegativity between the two different elements?
CO
CS2
H2O
CN-

2Arrange the following elements in the order of increasing electronegativity (least first).

N, S, Li, Si, C
S, Si, Li, C, N
Li, Si, S, C, N
Si, C, Li, N, S
Li, C, N, S, Si

3Arrange the following componds in the order of increasing ionic character of the indicated bonds (least first).

C-Cl, C-S, C-O, C-N
C-Cl, C-S, C-N, C-O
C-S, C-N, C-Cl, C-O
C-N, C-O, C-Cl, C-S
C-O, C-N, C-Cl, C-S

4Which of the following compounds are nonpolar?

H2O, CO2, NH3, BF3, CHCl3
CO2, NH3
CO2, BF3
H2O, NH3
NH3, CHCl3

5Carbon has a formal charge in which of the following compounds and ions?
CO2
CO3-2
CS2
CF3+

6Nitrogen has a negative formal charge in which of the following compounds?
NaNH2
N2
NH4Cl
HCN

7What is the molecular geometry (shape) of NO2+ ?
Tetrahedral
Linear
Trigonal
Pyramid

8What is the molecular geometry (shape) of CH3- ?
Tetrahedral
Linear
Trigonal
Pyramid

9How many constitutional isomers are there for an alcohol having the molecular fomular of C4H9OH?
2
3
4
5

10Which of the following deos not belong in the group of constitutional isomers?
2-methylpropene.gif
2-butene.gif
cyclobutane.gif
methylenecyclopropane.gif