FORM 2-CHEMISTRY

ONLINE TEST SERIES

COVALENT BONDING

1.	Covalent bonding occurs when what type of atoms join?

 A. Metal and metal

 B. Metal and non-metal

 C. Non-metal and non-metal

 D. Metal and a noble gas

2.	What happens to electrons in covalent bonding?

 A. They are shared by the atoms

 B. They pass from one atom to another

 C. They are removed from the atoms’ shell

 D. They are added to both atoms’ shells

3.	How many electrons are involved in a covalent bond?

 A. 4

 B. 2

 C. As many as are free

 D. 1

4.	A water molecule is covalently bonded. How many covalent bonds does it have?

 A. 1

 B. 2

 C. 3

 D. 4

5.	Methane is covalently bonded. How many bonds are involved?

 A. 1

 B. 2

 C. 3

 D. 4

6.	Pick the correct combination of properties of most covalent compounds.

 A. Non-conductor
Low melting points

 B. Conductor
Low melting points

 C. Conductor
High melting points

 D. Non-conductor
High boiling points

7.	Where do the electrons for a covalent bond come from?

 A. The nucleus

 B. The outermost electron shell

 C. The innermost electron shell

 D. The electron shell with the most electrons

8.	How many covalent bonds can nitrogen form?

 A. 2

 B. 3

 C. 1

 D. 4

9.	Which of these has molecules with two atoms joined by a covalent bond?

 A. Bromine

 B. Copper

 C. Neon

 D. Methane

10.	Some covalent substances have huge numbers of atoms bonded together by a network of covalent bonds. This is called…

 A. a giant covalent structure

 B. a giant structure

 C. a covalent giant

 D. a covalent network

 Loading …

Question 1 of 10