Question

Aromatic hydrocarbon are also known as ________

Answer 1

As we know that in organic chemistry, hydrocarbons are an important topic. The hydrocarbons are majorly classified as three groups. There are alkane, alkene and alkyne. The alkane means carbon-carbon single bond. The alkene has a carbon-carbon double bond. The alkyne means carbon-carbon having triple bond in the molecule. The general formula of alkane is ${{\text{C}}_{\text{n}}}{{\text{H}}_{{\text{2n + 2}}}}$. The general formula of alkene is ${{\text{C}}_{\text{n}}}{{\text{H}}_{{\text{2n}}}}$. The general formula of alkyne is ${{\text{C}}_{\text{n}}}{{\text{H}}_{{\text{2n - 2}}}}$.

Complete answer:
As we know that the aromatic hydrocarbons are also known as arenes or aryl hydrocarbons. Some examples of aromatic hydrocarbons are benzene, xylene, toluene, anthracene and naphthalene. The aromatic property of these molecules due to the planar structure, delocalization of pi electrons and cyclic structure.
According to the above discussion, we conclude aromatic hydrocarbons are also known as arenes.

Note:
We have to remember that in organic chemistry benzene is one of the important compounds. It is one of the aromatic compounds. The molecular formula of benzene is ${{\text{C}}_{\text{6}}}{{\text{H}}_{\text{6}}}$. Phenol is one of the derivatives of benzene. If simply said, phenol is one of the aromatic alcohols. Phenol is one of the mono substituent benzene compounds. Each mono-substituted moiety has three named positions in the ring. In the ring a nearby mono substituent group is called an ortho position, that means two ortho positions are in the ring, because of the left and right side of the substituent group. The alternatively position of the substituent group in the ring is called meta position, here also two meta positions possible in the left and right side of the substituent group. Para position is nothing but directly opposite to the substituent group in the ring. Electrophilic substitutions are attacked in ortho and para position in the ring.