Bonding Test Review
1. What occurs as two atoms of fluorine combine to
become a molecule of fluorine?
A)
B)
C)
D)
A bond is formed as energy is absorbed.
A bond is formed as energy is released.
A bond is broken as energy is absorbed.
A bond is broken as energy is released.
2. To break a chemical bond, energy must be
A) absorbed
C) produced
B) destroyed
D) released
3. As two chlorine atoms combine to form a molecule,
energy is
A) absorbed
C) created
B) released
D) destroyed
4. As energy is released during the formation of a bond, the
stability of the chemical system generally will
A) decrease
C) remain the same
B) increase
8. Which element has an atom with the greatest tendency to
attract electrons in a chemical bond?
A) carbon
C) silicon
9. Which term indicates how strongly an atom attracts the
electrons in a chemical bond?
A) alkalinity
C) electronegativity
10. Given the electron dot diagram:
The electrons in the bond between hydrogen and
fluorine are more strongly attracted to the atom of
A)
B)
C)
D)
hydrogen, which has the higher electronegativity
fluorine, which has the higher electronegativity
hydrogen, which has the lower electronegativity
fluorine, which has the lower electronegativity
A) PBr 3
C) NH 3
How many pairs of electrons are shared between the two
nitrogen atoms?
B) 2
C) 3
B) atomic mass
D) activation energy
11. Which formula represents a substance with the greatest
degree of ionic bonding?
5. Given the formula for hydrazine:
A) 1
B) chlorine
D) sulfur
D) 4
6. Given the Lewis electron-dot diagram:
B) MgBr 2
D) CO
12. An ionic compound is formed when there is a reaction
between the elements
A)
B)
C)
D)
strontium and chlorine
hydrogen and chlorine
nitrogen and oxygen
sulfur and oxygen
13. Which type of bond is formed when electrons are
transferred from one atom to another?
Which electrons are represented by all of the dots?
A)
B)
C)
D)
the carbon valence electrons, only
the hydrogen valence electrons, only
the carbon and hydrogen valence electrons
all of the carbon and hydrogen electrons
7. Which is the correct electron-dot formula for a molecule
of chlorine?
A)
C)
B)
D)
A) covalent
C) hydrogen
B) ionic
D) metallic
14. Which sample contains particles in a rigid, fixed,
geometric pattern?
A) CO 2(aq)
C) H2O( )
B) HCl(g)
D) KCl(s)
15. Which compound contains both ionic and covalent
bonds?
A) CaCO3
C) MgF 2
B) PCl 3
D) CH 2O
Bonding Test Review
16. Which of the following solids has the highest melting
point?
A) H2O(s)
C) SO 2(s)
B) Na2O(s)
D) CO 2(s)
17. What is the total number of electron pairs shared
between the two atoms in an O 2 molecule?
A) 1
B) 2
C) 6
D) 4
18. A molecular compound is formed when a chemical
reaction occurs between atoms of
A)
B)
C)
D)
chlorine and sodium
chlorine and yttrium
oxygen and hydrogen
oxygen and magnesium
19. Which characteristic is a property of molecular
substances?
A)
B)
C)
D)
good heat conductivity
good electrical conductivity
low melting point
high melting point
20. Which type of substance is soft, has a low melting
point, and is a poor conductor of heat and electricity?
A) network solid
C) metallic solid
B) molecular solid
D) ionic solid
21. Magnesium nitrate contains chemical bonds that are
A)
B)
C)
D)
covalent, only
ionic, only
both covalent and ionic
neither covalent nor ionic
22. Base your answer to the following question on Which
statement correctly describes the bonds in the electron
dot formula shown to the right?
A) One of the bonds represented is ionic
B) All of the bonds represented are ionic
C) One of the bonds represented is coordinate
covalent
D) All of the bonds represented are coordinate
covalent
23. A solid substance is an excellent conductor of
electricity. The chemical bonds in this substance are
most likely
A) ionic, because the valence electrons are shared
between atoms
B) ionic, because the valence electrons are mobile
C) metallic, because the valence electrons are
stationary
D) metallic, because the valence electrons are
mobile
24. Which substance contains metallic bonds?
A) Hg( )
C) NaCl(s)
B) H2O( )
D) C6H12O6(s)
25. Silicon dioxide (SiO 2) and diamonds are best described
as
A) molecular substances with coordinate covalent
bonding
B) molecular substances with ionic bonding
C) network solids with covalent bonding
D) network solids with ionic bonding
26. Which molecule has a nonpolar covalent bond?
A)
B)
C)
D)
27. Which compound has hydrogen bonding between its
molecules?
A) CH 4
B) CaH 2 C) KH
D) NH 3
28. Which formula represents a nonpolar molecule?
A) CH 4
B) HCl
C) H2O
D) NH 3
29. Which statement explains why a molecule of CH 4 is
nonpolar?
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 CH 4 molecule
distributes the charges symmetrically.
D) The geometric shape of a CH4 molecule
distributes the charges asymmetrically.
Bonding Test Review
30. Hydrogen bonding is a type of
A)
B)
C)
D)
strong covalent bond
weak ionic bond
strong intermolecular force
weak intermolecular force
31. Which type of attraction results from the formation of
weak momentary dipoles?
A)
B)
C)
D)
ionic
metallic
molecule-ion
van der Waals forces
32. The table below shows the normal boiling point of four
compounds.
33. When calcium chloride is dissolved in water, to which
end of the adjacent water molecules will a calcium ion
be attracted?
A)
B)
C)
D)
34. Which diagram best illustrates the ion-molecule
attractions that occur when the ions of NaCl(s) are
added to water?
A)
B)
C)
D)
Which compound has the strongest intermolecular
forces?
A) HF( )
C) CH 3F( )
B) CH 3Cl( )
D) HCl( )
the oxygen end, which is the negative pole
the oxygen end, which is the positive pole
the hydrogen end, which is the negative pole
the hydrogen end, which is the positive pole
Answer Key
Bonding Test Review
1.
B
2.
A
3.
B
4.
B
5.
A
6.
C
7.
D
8.
B
9.
C
10.
B
11.
A
12.
A
13.
B
14.
D
15.
A
16.
B
17.
B
18.
C
19.
C
20.
B
21.
C
22.
C
23.
D
24.
A
25.
C
26.
A
27.
D
28.
A
29.
C
30.
C
31.
D
32.
A
33.
A
34.
A