Q. How many heterocyclic compounds are present in the following set?
Carbolic acid, piperidine, furan, acetamide, tropone, pyridine

 181  169 Organic Chemistry – Some Basic Principles and Techniques Report Error

Answer: 3

Solution:

Cyclic organic compounds which contain one or more heteroatoms (such as , etc.) in the ring are called heterocyclic compounds.
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Thus, piperidine, furan and pyridine are heterocyclic compounds.