Identify the structural formula for ethene.
Answer & explanation
Correct answer: option 4
The correct answer is option 4. \(CH_2=CH_2\).
The structural formula for ethene, also known as ethylene, is \(CH_2=CH_2\).
In ethene, also represented as \(CH_2=CH_2\), each carbon atom forms a double bond with one hydrogen atom and shares a double bond with the other carbon atom. Therefore, option 4, \(CH_2=CH_2\), is the correct structural formula for ethene.