MCQ
Which of the following is not aromatic
- ABenzene
- BNaphthalene
- CPyridine
- ✓$1,3,5- $heptatriene
✓
Answer
Correct option: D.
$1,3,5- $heptatriene
d
(d) A compound is said to be aromatic if it is planar and there is complete delocalization of $\pi $ electrons, which is only possilble if it is a conjugated cyclic system and number of electrons used in delocalization is $(4n + 2)$. $1, 3, 5- $heptatriene is not an aromatic compound because complete delocalization of $\pi $ electrons, is not possible in it.
(d) A compound is said to be aromatic if it is planar and there is complete delocalization of $\pi $ electrons, which is only possilble if it is a conjugated cyclic system and number of electrons used in delocalization is $(4n + 2)$. $1, 3, 5- $heptatriene is not an aromatic compound because complete delocalization of $\pi $ electrons, is not possible in it.
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