Question

Given below are two statements: one is labelled as Assertion A and, the other is labelled as Reason R.
Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aromatic and aromatic.
Reason R: Planarity is one, of the requirements of aromatic systems.
In the light of the above statements, choose the most appropriate answer from the options given below.

• A. Both A and R are correct and R is the correct explanation of A
• B. Both A and R are correct but R is NOT the correct explanation of A.
• C. A is correct but R is not correct.
• D. A is not correct but R is correct.

Answer 1

Answer: (D)

A is not correct but R is correct.

Answer 2

[6] Annulene is aromatic because it is planar.
[8] Annulene and [10] Annulene are both not aromatic because they are not planar. So, Assertion (A) is not correct.
Reason (R) is correct because planarity is one of the requirements of aromatic system.

The correct answer is (D): A is not correct but R is correct.