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Ionic Bonds and Ionic Substances

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Which two compounds are Ionic bonds?

a)

water(H20)  and rust(Fe2O3)

b)

water(H2O) and carbon dioxide(CO2)

c)

rust(Fe2O3) and salt(NaCl)

d)

oxygen gas(O2) and nitrogen gas(N2)

2.

Ionic bonds are between...

a)

Metal and Non-metal

b)

Non-metal and Non-metal

c)

Metal and Metal

d)

Metalloids

3.

How are ionic bonds formed?

a)

Transfer of electrons

b)

Sharing of electrons

4.

What type of bond is this?

a)

ionic

b)

covalent

5.

An ionic bond forms when 

a)

Valence electrons are shared

b)

a sea of mobile electrons surround the cations

c)

valence electrons are transferred between atoms

d)

none of the above

6.

What is the type of bond formed when a metal chemically bonds with a nonmetal by GIVING its valence electrons?

a)

ionic bond

b)

covalent bond

c)

atomic bond

d)

molecular bond

7.

Which two substances are ionic compounds?

a)

sodium chloride (NaCl)

b)

carbon dioxide (CO₂)

c)

water (H₂O)

d)

magnesium oxide (MgO)

8.

Which three of the following are features of ionic compounds? (click 3 boxes)

a)

They have bonds between metals and non-metals.

b)

They have bonds between two non-metals.

c)

They form simple molecular structures.

d)

They form giant ionic lattices.

e)

They involve the transfer of electrons.

9.

Ionic compounds form giant ionic lattices. What forces hold the giant ionic lattices together?

a)

strong frictional forces between the surfaces of the atoms

b)

strong magnetic forces of attraction between the poles of ions

c)

strong electrostatic forces of attraction between oppositely charged ions

10.

Why do ionic compounds have high melting and boiling points?

a)

Their ions are free to move.

b)

Their ions are held in fixed positions.

c)

They have many strong bonds.

d)

They have many weak bonds.

11.

True or false? Ionic compounds have high melting points.

a)

true

b)

false

12.

Which of the following pairs of elements is most likely to form an ionic bond?

a)

A) Sodium (Na) and Chlorine (Cl)

b)

B) Hydrogen (H) and Oxygen (O)

c)

C) Carbon (C) and Oxygen (O)

d)

D) Nitrogen (N) and Oxygen (O)

13.

What is the primary characteristic of an ionic compound?

a)

A) High melting and boiling points

b)

B) Low melting and boiling points

c)

C) Poor electrical conductivity in solid state

d)

D) High electrical conductivity in solid state

14.

Which of the following is a property of ionic substances when dissolved in water?

a)

A) They conduct electricity

b)

B) They do not conduct electricity

c)

C) They become gaseous

d)

D) They form a precipitate

15.

What happens to the electrons in an ionic bond?

a)

A) They are shared equally between atoms

b)

B) They are transferred from one atom to another

c)

C) They are shared unequally between atoms

d)

D) They are not involved in bonding

16.

Which of the following is an example of an ionic compound?

a)

A) Water (H2O)

b)

B) Methane (CH4)

c)

C) Sodium chloride (NaCl)

d)

D) Ammonia (NH3)

17.

Why do ionic compounds tend to have high melting points?

a)

A) Because of strong electrostatic forces between ions

b)

B) Because of weak van der Waals forces

c)

C) Because of hydrogen bonding

d)

D) Because of covalent bonding

18.

In the formation of an ionic bond, what role does the metal play?

a)

A) It gains electrons

b)

B) It loses electrons

c)

C) It shares electrons

d)

D) It neither gains nor loses electrons

19.

Which of the following best describes the structure of ionic compounds?

a)

A) Molecules

b)

B) Lattice structure

c)

C) Linear chains

d)

D) Discrete atoms

20.

What is the charge on the sodium ion in sodium chloride?

a)

A) +1

b)

B) -1

c)

C) +2

d)

D) -2

21.

Which of the following is a real-world application of ionic compounds?

a)

A) Used as a fuel

b)

B) Used in batteries

c)

C) Used in making plastics

d)

D) Used in making glass

22.

What is the formula unit of magnesium oxide?

a)

A) MgO

b)

B) Mg2O

c)

C) MgO2

d)

D) Mg2O3

23.

How do ionic compounds behave in water?

a)

A) They dissolve and dissociate into ions

b)

B) They remain intact and do not dissolve

c)

C) They form covalent bonds with water

d)

D) They evaporate

24.

Which of the following statements is true about ionic bonds?

a)

A) They are formed by the sharing of electrons

b)

B) They are formed by the transfer of electrons

c)

C) They are weaker than covalent bonds

d)

D) They do not involve electrons

25.

What is the role of non-metals in ionic bonding?

a)

A) They lose electrons

b)

B) They gain electrons

c)

C) They share electrons

d)

D) They do not participate in bonding