Question

Tropolone is an example of

• A. Alicyclic Compound
• B. Benzenoid Aromatic Compound
• C. Heterocyclic Aromatic Compound
• D. Non-Benzenoid Aromatic Compound

Answer 1

The correct option is D

Non-Benzenoid Aromatic Compound

Explanation for correct option:

D. Non-Benzenoid Aromatic Compound

Tropolone:

• Tropolone is an organic compound that is pale yellow in color. It is a seven-membered cyclic ring.
• The molecular formula of Tropolone is $${\text{C}}_7{\text{H}}_6{\text{O}}_2$$.
• The structure of Tropolone is given below:

• Non-benzenoid aromatic compounds are those compounds that do not have any benzene ring but are aromatic in nature.
• Thus, Tropolone is a Non-benzenoid aromatic compound.

Explanation for incorrect options:

A. Alicyclic compounds

• Alicyclic compounds are those compounds that can be saturated/unsaturated but do not show aromatic character.
• For example, Cyclohexane is an alicyclic compound.

B. Benzenoid Aromatic compounds

• Benzenoid Aromatic compounds are those which have benzene ring and they are aromatic in nature.”
• For example, Naphthalene is a Benzenoid Aromatic compound.

C. Heterocyclic aromatic compounds

• Heterocyclic aromatic compounds are those which have more than one carbon atom but are replaced by some group of atoms like nitrogen/oxygen/sulfur”.
• For example, Furan is a Heterocyclic aromatic compound.

Thus options A, B, and C are incorrect.

Hence, the correct option is D. Tropolone is a Non-benzenoid aromatic compound.