The correct answer is option-1, Tropolone, is NOT a heterocyclic aromatic compound.

Heterocyclic aromatic compounds are organic compounds that contain a ring structure with both carbon atoms and atoms of other elements, such as nitrogen, oxygen, or sulfur. To determine whether a compound is heterocyclic aromatic, you need to consider its ring structure.

Option-2, Furan, is a heterocyclic aromatic compound. It has a five-membered ring structure containing one oxygen atom.

Option-3, Thiophene, is also a heterocyclic aromatic compound. It has a five-membered ring structure containing one sulfur atom.

Option-4, Pyridine, is a heterocyclic aromatic compound. It has a six-membered ring structure containing one nitrogen atom.

However, option-1, Tropolone, does not fit the definition of heterocyclic aromatic compound. Tropolone is a bicyclic compound with two rings, but it does not contain any atoms of elements other than carbon. Therefore, it is not considered a heterocyclic aromatic compound.

In conclusion, Tropolone, option-1, is NOT a heterocyclic aromatic compound.