The video tutorial explains the concepts of carbon tetravalency and catenation. Tetravalency refers to carbon's ability to form four covalent bonds, as seen in methane (CH4). Catenation is the property of carbon to form long chains with itself or other elements, contributing to stable structures. An example of polymerization is shown with ethane molecules forming polyethylene.

What is the term used to describe the ability of carbon to form four bonds with other atoms?

• Tetravalency

• Catenation

• Isomerism

• Polymerization

What is the electronic configuration of carbon?

• 4, 4

• 4, 2

• 2, 4

• 2, 2

How many electrons does carbon need to gain or lose to achieve a stable configuration?

• Two

• Three

• Five

• Four

In the formation of methane (CH4), how many hydrogen atoms bond with one carbon atom?

• Five

• Two

• Three

• Four

What type of bond is formed between carbon and hydrogen in methane?

• Metallic bond

• Ionic bond

• Covalent bond

• Hydrogen bond

What is the term used to describe the ability of carbon to form long chains?

• Tetravalency

• Catenation

• Isomerism

• Polymerization

Why is carbon able to form stable bonds with other carbon atoms?

• Because it has only one shell

• Because it has a large size

• Because it has a high atomic number

• Because it has a very small size with only two shells

What is formed when thousands of ethane molecules bond together?

• Polyethylene

• Butane

• Propane

• Methane

What is the repeating unit in the structure of polyethylene?

• C2H4

• CH2

• C2H6

• CH3