Question

Assertion (A) The compound cyclooctatetraene has the following structural formula.

It is cyclic and has conjugated $8\pi$-electron system but it is not an aromatic compound.
Reason $(R)(4n+2)\pi$-electron rule does not hold good and ring is not planar.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$
• C. $A$ is correct; $R$ is incorrect
• D. $R$ is correct; $A$ is incorrect

Answer 1

Answer: (A)

is cyclic and has conjugated $8\pi$-electron system but it is not an aromatic compound because here $(4n+2)\pi$-electrons rule does not hold good and ring is not planar.
Thus, both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.