Concept:Ethene is an alkene with a carbon–carbon double bond.
It undergoes an addition reaction with bromine at room temperature.
Explanation:Ethene,
C2H4, contains a double bond between the two carbon atoms.
When bromine,
Br2, is added, the double bond breaks and each bromine atom bonds to a different carbon atom.
This is an electrophilic addition reaction.
The product is a saturated compound in which the two bromine atoms are on adjacent carbon atoms.
The equation is:
C2H4+Br2→CH2Br−CH2BrThis compound is named 1,2-dibromoethane.
Answer:The compound formed is 1,2-dibromoethane.
Correct option: D.