Question

Assertion :Cyclopentadienyl anion is aromatic in nature. Reason: Cyclopentadienyl anion has six $\pi$ electrons.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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.

Since it has six $\pi$-electrons (2 $\pi$ bond and 1 lone pair), follows $4n+2$ electrons rule, thus it is aromatic in nature.

Hence, the correct answer is option $\text{A}$.