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Bonding - Part II RW

Total questions: 40

Worksheet time: 24mins

Name
Class
Date
1.

What shape is the molecule?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

e)

linear

2.

What shape is the molecule?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

e)

linear

3.

What shape is the molecule?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

e)

linear

4.

What shape is the molecule?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

e)

linear

5.

What shape is the molecule?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

e)

linear

6.

What is the bond angle between atoms in this molecule?

a)

180o

b)

120o

c)

109.5o

d)

<109.5o

7.

What is the bond angle between atoms in this molecule?

a)

180o

b)

120o

c)

109.5o

d)

<109.5o

8.

What is the bond angle between atoms in this molecule?

a)

180o

b)

120o

c)

109.5o

d)

<109.5o

9.

What is the bond angle between atoms in this molecule?

a)

180o

b)

120o

c)

109.5o

d)

<109.5o

10.

What is the bond angle between atoms in this molecule?

a)

180o

b)

120o

c)

109.5o

d)

<109.5o

11.

Based on intermolecular forces, which of the molecules would have the highest boiling point?

a)

HCl

b)

NH3

c)

N2

d)

CO2

12.

Which of the following would have the highest melting point?

a)

NaCl

b)

Cl2

c)

H2O

d)

PCl3

13.

In a polar bond,

a)

electrons are shared equally between atoms

b)

electrons are shared unequally between atoms

c)

protons are shared equally between atoms

d)

protons are shared unequally between atoms

14.

Based on the electronegativity trends from the periodic table, which molecular formula correctly shows the polar nature of the HBr molecule?

a)

δ+H – Fδ+

b)

δ+H – Fδ-

c)

δ-H –Fδ+

d)

δ-H – Fδ-

15.

According to VSEPR theory, molecules adjust their shapes to keep which of the following as far apart as possible on the central atom?

a)

pairs of valence electrons

b)

inner electrons

c)

electron closest to the nucleus

d)

sea of electrons

16.

Which of the following has the highest electronegativity of any element?

a)

Fr

b)

F

c)

C

d)

H

17.

What is electronegativity?

a)

the energy required to remove an electron from an atom

b)

the distance between atomic nuclei in a bond

c)

the delocalization of electrons in a molecule

d)

the pull of an atom on the electrons of another atom in a chemical bond

18.

Which of the following materials will most easily mix with carbon tetrachloride, CCl4

a)

hexane

b)

methanol

c)

water

d)

NaCl

19.

Into which of the following will sodium nitrate, NaNO3, dissolve?

a)

hexane

b)

water

c)

carbon tetrachloride

d)

butane

20.

What type of intermolecular forces will be present between molecules in a sample of this substance?

a)

London dispersion

b)

dipole-dipole & London dispersion

c)

Hydrogen bonding, dipole-dipole & Hydrogen bonding

21.

What type of intermolecular forces will be present between molecules in a sample of this substance?

a)

London dispersion

b)

dipole-dipole & London dispersion

c)

Hydrogen bonding, dipole-dipole & London dispersion

22.

What type of intermolecular forces will be present between molecules in a sample of this substance?

a)

London dispersion

b)

dipole-dipole & London dispersion

c)

Hydrogen bonding, dipole-dipole & London dispersion

23.

Which of the following molecules will have a higher boiling butane (C4H10) and octane (C8H18)?

a)

Octane since it has a higher molecular weight

b)

Butane because it can hydrogen bond

24.

What is required for molecules to have dipole-dipole forces between molecules?

a)

Molecules must be nonpolar

b)

Molecules must be polar

c)

Molecules must contain a hydrogen bonded to N, O or F.

d)

Molecules must contain electrons

25.

What is required for molecules to have London dispersion forces between molecules?

a)

Molecules must be nonpolar

b)

Molecules must be polar

c)

Molecules must contain a hydrogen bonded to N, O or F.

d)

Molecules must contain electrons

26.

What is required for molecules to have hydrogen bonding between molecules?

a)

Molecules must be nonpolar

b)

Molecules must be polar

c)

Molecules must contain a hydrogen bonded to N, O or F.

d)

Molecules must contain electrons

27.

Determine the molecular geometry of the given structure.

a)

Trigonal Pyramidal

b)

Trigonal Bipyramidal

c)

Trigonal Planar

d)

Tetrahedral

28.
What is the shape of H2O?
a)
linear
b)
tetrahedral
c)
bent
d)
trigonal pyramidal
29.
SiCl4 has what shape?
a)
square planar
b)
square pyramidal
c)
tetrahedral
d)
octahedral
30.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
31.
Which of the following is a polar molecule?
a)
CH4
b)
Xe
c)
H2O
d)
CO2
32.
Which statement correctly describes NaCl?
a)
Its charge is evenly distributed
b)
It is a polar molecule
c)
It is ionic, and its charges are distributed unevenly
33.
Which formula represents a nonpolar molecule?
a)
HBr
b)
H2S
c)
CBr4
d)
PCl3
34.
Which of the following molecules, based on the elements present, would be most polar?
a)
HF
b)
H2
c)
HCl
d)
HBr
35.
Which statement explains why ethene does not dissolve in water?
a)
Ethene is polar and water is nonpolar.
b)
Ethene is nonpolar and water is nonpolar.
c)
Ethene is polar and water is polar.
d)
Ethene is nonpolar and water is polar.
36.
Which of the following molecules contains only London dispersion forces?
a)
CF4
b)
HCl
c)
H2O
d)
MgO(aq)
37.
Which of the following molecules predominantly consists of dipole-dipole forces?
a)
HF
b)
Ne
c)
O2
d)
ICl
38.
Which of the following molecules would have the lowest boiling point?
a)
CH4
b)
C2H6
c)
C3H8
d)
C4H10
39.
Propane is a gas at STP, while bromine is a liquid at STP. Which statement correctly explains these observations?
a)
Bromine has weaker intermolecular forces than propane does
b)
Bromine has greater molecular polarity than propane does
c)
Bromine has weaker molecular polarity than propane does
d)
Bromine has stronger intermolecular forces than propane does
40.
Which of the following molecules has hydrogen bonding?
a)
HCl
b)
HI
c)
HF
d)
HBr

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