MCQ
Which of the following is a heterocyclic compound
- A
- B$\begin{array}{*{20}{c}}
{HC = COOH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{HC = COOH}
\end{array}$ - C
- D
✓
Answer
A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s).
Since in option $(A)$, the given ring structure has two different elements, i.e., carbon and sulphur, while in all othe compounds, the ring structure has only carbon, hence the given compound in $(A)$ is heterocyclic.
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