Hexane Structure and Properties

The video tutorial explains how to write the structure for 3-ethyl 4-methyl hexane. It begins by identifying the compound as an alkane, characterized by single-bonded carbon atoms. The tutorial then constructs a six-carbon hexane chain and adds a methyl group to the fourth carbon and an ethyl group to the third carbon. The final structure is reviewed, and the molecular formula C9H20 is provided.

What does the suffix '-ane' indicate in the name 3-ethyl-4-methyl hexane?

• Presence of aromatic rings

• Presence of double bonds

• Presence of single bonds

• Presence of triple bonds

How many carbon atoms are present in the main chain of hexane?

• Four

• Five

• Six

• Seven

What is the structure of a methyl group?

• CH2

• CH3

• C2H5

• C3H7

How many carbon atoms are in an ethyl group?

• Four

• Two

• One

• Three

On which carbon of the hexane chain is the ethyl group attached?

• First

• Fourth

• Second

• Third

On which carbon of the hexane chain is the methyl group attached?

• Second

• First

• Third

• Fourth

What is the molecular formula for 3-ethyl-4-methyl hexane?

• C8H18

• C11H24

• C10H22

• C9H20

What type of bonds are present in 3-ethyl-4-methyl hexane?

• Ionic bonds

• Triple bonds

• Double bonds

• Single bonds