JEE Chemistry 2024 Question with Solution

Given: Cyclohexene is to be classified among the given types of organic compounds.

Find: The correct category of cyclohexene.

Cyclohexene is a six-carbon ring with one double bond. Since it has a ring structure, it is not an open-chain compound, so it is not acyclic.

Alicyclic compounds are cyclic compounds that are non-aromatic. Cyclohexene fits this description because it is cyclic and does not possess the aromatic character of benzene.

Benzenoid aromatic compounds contain a benzene ring and aromatic stability, which cyclohexene does not have. It is also not benzenoid non-aromatic.

Therefore, cyclohexene is an alicyclic compound. The correct option is D.

Note: The solution incorrectly labels the option letter as A, but the worked conclusion clearly states Alicyclic, which matches option D.

Given: Cyclohexene has a cyclic six-carbon structure with one double bond.

Find: Which structural class it belongs to.

1. Acyclic compounds have open-chain structures. Cyclohexene has a ring, so this option is incorrect.
2. Benzenoid aromatic compounds contain a benzene-like aromatic ring. Cyclohexene is not aromatic.
3. Benzenoid non-aromatic does not describe cyclohexene because it is not benzenoid.
4. Alicyclic compounds are cyclic and non-aromatic. Cyclohexene satisfies this definition.

Therefore, the correct answer is Alicyclic, so the correct option is D.