Test: Aromatic Hydrocarbon- General Properties & Uses - JAMB MCQ

Benzene is a six-membered aromatic hydrocarbon with a cyclic structure and delocalized pi electrons. It is the simplest and most well-known aromatic hydrocarbon.

Aromatic hydrocarbons exhibit low reactivity due to the stability provided by the delocalized pi electrons in their cyclic structures. This stability makes them less prone to undergo chemical reactions compared to other hydrocarbons.

Aromatic hydrocarbons are characterized by their distinct aromatic smell, whereas aliphatic hydrocarbons do not possess such odors. This odor is due to the presence of the aromatic ring in their structure.

Toluene, an aromatic hydrocarbon, is widely used as a solvent in various industrial applications such as paint thinners, adhesives, and chemical synthesis. Its ability to dissolve a wide range of substances makes it a versatile solvent.

Aromatic hydrocarbons find extensive use in the production of pharmaceuticals. Many drugs, such as aspirin, antibiotics, and painkillers, are synthesized using aromatic compounds as starting materials.

Aromatic hydrocarbons generally have high melting points due to the strong intermolecular forces between the aromatic molecules. The delocalized pi electrons contribute to these strong intermolecular attractions.

Aromatic hydrocarbons are often found in natural gas deposits alongside other hydrocarbon compounds. They can be extracted and processed for various industrial applications.

The delocalized pi electrons in aromatic hydrocarbons provide stability to the molecule. This stability allows for substitution reactions, where one atom or group is substituted by another, while preserving the aromaticity of the compound.

Xylene, an aromatic hydrocarbon, is commonly used as a fuel additive to improve the octane rating of gasoline. It enhances the combustion properties of the fuel.

Some aromatic hydrocarbons, such as benzene, are known to possess carcinogenic properties. Prolonged exposure to these substances can increase the risk of developing certain types of cancers.