Question

The hydrocarbon which contains at least ___________ benzene ring in their molecules are called aromatic hydrocarbon.

• A. zero
• B. one
• C. two
• D. three

Answer 1

The correct option is B one

Aromatic hydrocarbons or arenes are hydrocarbons with sigma bonds and delocalized pi electrons between carbon atoms forming a ring. Aromatic hydrocarbons can be monocyclic or polycyclic. The configuration of six carbons atoms in aromatic compounds is known as a benzene ring.
some non-benzene based compounds called heteroarenes which follow huckles rule are also known as aromatic compounds.
Usually, hydrocarbons which contain at least one benzene ring in their molecules are called aromatic hydrocarbons.