Chapter 27: Aromatic Chemistry

Question 1

Describe the bonding and structure of benzene

Answer 1

• regular hexagon of carbon atoms, each bonded to a single hydrogen atom,
• 6 delocalised electrons in the centre,

Question 2

Physical properties of arenes

Answer 2

• colourless liquid at room temperature,
• has a higher boiling point than hexane due to benzene’s flat, hexagonal molecules which can pack together well so they are harder to seperate.
• Do not mix with water, but mixed with other hydrocarbons and non-polar solvents

Question 3

What is the name of this compound

Answer 3

Methylbenzene