Answer:
C6H6, also known as benzene, is a Lewis base because it can donate a pair of electrons to form a coordinate covalent bond with a Lewis acid. A Lewis base is defined as any substance that can donate a pair of electrons to form a coordinate covalent bond.
However, benzene is not a Bronsted-Lowry base because it does not have a hydrogen ion (H+) to donate. A Bronsted-Lowry base is defined as any substance that can donate a hydrogen ion (H+).
Benzene is also not an Arrhenius base because it does not produce hydroxide ions (OH-) when dissolved in water. An Arrhenius base is defined as any substance that produces hydroxide ions (OH-) when dissolved in water.
Step-by-step explanation:
There are different definitions of what a base is. Three common definitions are the Lewis, Bronsted-Lowry, and Arrhenius definitions.
According to the Lewis definition, a base is any substance that can donate a pair of electrons to form a bond. Benzene (C6H6) can do this, so it is considered a Lewis base.
The Bronsted-Lowry definition says that a base is any substance that can donate a hydrogen ion (H+). Benzene does not have a hydrogen ion to donate, so it is not considered a Bronsted-Lowry base.
The Arrhenius definition says that a base is any substance that produces hydroxide ions (OH-) when dissolved in water. Benzene does not produce hydroxide ions when dissolved in water, so it is not considered an Arrhenius base.