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Worksheets

Polarity and Intermolecular Forces

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

nonpolar covalent

b)

polar covalent

c)

ionic

d)

metallic

2.

When you have Li-O, what is the polarity?

a)

nonpolar

b)

polar

c)

ionic

3.

Polar and nonpolar bonds are both types of _____

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Nonmetallic bond

4.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

polar covalent

b)

nonpolar covalent

c)

ionic

d)

metallic

5.

What causes a partial charge on a molecule?

a)

unequal sharing of electrons

b)

an electronegativity difference between 0.4 and 1.8.

c)

the shape of the molecule

d)

all of the above

6.

Attractions between polar molecules are Weaker than attractions between nonpolar molecules.

a)

True

b)

False

7.

Which formula represents a nonpolar molecule?

a)

HBr

b)

H2S

c)

CBr4

d)

PCl3

8.

Partial charges like the ones shown here are called:

a)

dipoles

b)

deltas

c)

ions

d)

magnetic poles

9.

Which of the following is a polar molecule?

a)

CH4

b)

Xe

c)

H2O

d)

CO2

10.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

11.

Will this molecule be polar or nonpolar? H2S

a)

polar

b)

nonpolar

12.

Which type of intermolecular force is the strongest?

a)

Dipole-dipole interactions

b)

Hydrogen bonding

c)

London dispersion forces

d)

Van der Waals forces

13.

What is the main reason water has a high boiling point compared to other molecules of similar size?

a)

Its molecular weight

b)

Hydrogen bonding

c)

Dipole-dipole interactions

d)

London dispersion forces

14.

Which of the following molecules is likely to have the highest polarity?

a)

CO2\text{CO}_2

b)

CH4\text{CH}_4

c)

NH3\text{NH}_3

d)

CCl4\text{CCl}_4

15.

In an experiment, a student observes that oil and water do not mix. What is the primary reason for this observation?

a)

Oil is denser than water

b)

Water is polar and oil is nonpolar

c)

Oil has stronger intermolecular forces

d)

Water has a higher boiling point