Live Education Quiz

1

Intermolecular forces act between:

A

Atoms

B

Nuclei

C

Molecules

D

Electrons

2

Which substance shows hydrogen bonding?

A

NaCl

B

CH4

C

H2O

D

CO2

3

Which quantity is conserved in a chemical reaction?

A

Volume

B

Mass

C

Temperature

D

Energy only

4

George is learning about intermolecular forces. He understands that dipole-dipole forces are stronger than London dispersion forces. Which of the following substances has dipole-dipole forces as the main intermolecular force?

A

F2

B

HCl

C

CH4

D

CCl4

5

Julia is studying gram formula mass. She wants to find the gram formula mass of CaCl2. (Ca=40, Cl=35.5)

A

75.5 g

B

111 g

C

90.5 g

D

120 g

6

Electron dot structure shows:

A

Neutrons only

B

Valence electrons

C

All electrons

D

Protons only

7

Fatima is learning about Avogadro's number. She knows that one mole of any substance contains 6.022 × 10^23 particles. What is this number called?

A

Avogadro's number

B

Plank's constant

C

Molar volume

D

Gas constant

8

Why do atoms form chemical bonds?

A

To increase mass

B

To become stable

C

To lose identity

D

To gain color

9

Mohamed is learning about the uses of diamond. He knows that diamond is used in cutting tools. Why is diamond used in cutting tools?

A

Because it is very soft

B

Because it is extremely hard

C

Because it is a good conductor of heat

D

Because it is chemically reactive

10

Intermolecular forces are generally:

A

Very strong

B

Equal to covalent bonds

C

Weaker than chemical bonds

D

Stronger than ionic bonds

🎉 Practice Complete!