A)The bonds between the atoms in a CH4 molecule
are polar.
B)The bonds between the atoms in a CH4 molecule
are ionic.
C)The geometric shape of a CH4 molecule
distributes the charges symmetrically.
D)The geometric shape of a CH4 molecule
distributes the charges asymmetrically.
1.Which statement explains why a molecule of CH4 is
nonpolar?
A)symmetrical and polar
B)symmetrical and nonpolar
C)asymmetrical and polar
D)asymmetrical and nonpolar
2.Given the formula representing a molecule:
H – C C – H
The molecule is
A)H2B)H2OC)CO2D)CCl4
3.Which formula represents a polar molecule?
A)HClB)H2OC)NH3D)CH4
4.Which formula represents a nonpolar molecule?
A)The shape of the CO2 molecule is symmetrical.
B)The shape of the CO2 molecule is asymmetrical.
C)The CO2 molecule has a deficiency of electrons.
D)The CO2 molecule has an excess of electrons.
5.Why is a molecule of CO2 nonpolar even though the
bonds between the carbon atom and the oxygen atoms
are polar?
A)CO2 and HClB)CO2 and CH4
C)H2O and HClD)H2O and CH4
6.Which formulas represent two polar molecules?
A)Br2B)CO2C)CH4D)NH3
7.Which formula represents a polar molecule?
A)H2SB)HClC)CH4D)NH3
8.Which formula represents a nonpolar molecule?
A)HClB)H2OC)NH3D)CF4
9.Which formula represents a nonpolar molecule?
A)H2OB)NH3C)COD)CO2
10.Which molecule is nonpolar?
A)B)
C)D)
11.Which electron-dot structure represents a non-polar
molecule?
12.Base your answer to the following question on
Which pair of characteristics describes the molecule
illustrated below?
A)symmetrical and polar
B)symmetrical and nonpolar
C)asymmetrical and polar
D)asymmetrical and nonpolar
A)B)
C)D)
13.Which structural formula represents a polar
molecule?
A)N2B)NH3C)Cl2D)CCl4
14.Which molecule has an asymmetrical shape?
A)It is polar and forms a polar molecule.
B)It is polar and forms a nonpolar molecule.
C)It is nonpolar and forms a polar molecule.
D)It is nonpolar and forms a nonpolar molecule.
15.Two fluorine atoms are held together by a covalent
bond. Which statement correctly describes this
bond?
