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Q.
Assertion : Cyclopentadienyl anion is aromatic in nature.
Reason : Cyclopentadienyl anion has six $\pi$ electrons.
Hydrocarbons
Solution:
A compound is aromatic if it is planar, having complete delocalisation of the $\pi$ electrons in the ring and has $(4n + 2)\pi$ electrons in the ring where $n$ is an integer.
