Question

Styrene is -

• A. Chlorobenzene
• B. Vinyl benzene
• C. Methyl benzene
• D. Ethyl benzene

Hint:

Styrene is widely used in the production of polystyrene, which is a common plastic used in packaging and insulation.

Answer 1

The Correct Option is B

Styrene is an organic compound with the chemical formula \( C_6H_5CH=CH_2 \), and is also known as ethenylbenzene or vinylbenzene. It consists of a benzene ring (\( C_6H_5 \)) attached to an ethenyl group (\( CH=CH_2 \)).

Chlorobenzene (A): Chlorobenzene has a chlorine atom attached to the benzene ring and does not contain the ethenyl group, making it incorrect.
Vinyl benzene (B): Vinyl benzene, also known as styrene, is the correct answer as it has the ethenyl group attached to the benzene ring.
Methyl benzene (C): Methylbenzene, commonly known as toluene, has a methyl group attached to the benzene ring, not an ethenyl group, so it is incorrect.
Ethyl benzene (D): Ethylbenzene has an ethyl group attached to the benzene ring, which is not the same as the ethenyl group in styrene.

Thus, the correct answer is (B) Vinyl benzene.