Tropolone is an example for which of the following class of compounds?
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Non-benzenoid aromatic compounds do not have the benzenoid (6-membered) ring structure, which is characteristic of compounds like benzene. Tropolone is one such example.
Tropolone is a compound that contains a non-benzenoid ring structure. It is an example of a non-benzenoid aromatic compound because it does not contain the benzenoid (6-membered) ring structure typical of compounds like benzene. Tropolone is a bicyclic compound with a non-benzenoid structure, making it a part of the non-benzenoid aromatic compounds class.
Thus, the correct answer is option (2), Non-Benzenoid aromatic compound.