Question

How to convert 1 2 di chloro ethane in to ethene

Answer 1

1-2,dichloro ethane converted into ethene by dehalogention of vicinal dihalide.  

• A compound having 2 halogen atoms on adjacent carbon atom is called vicinal dihalide.
• Alkene are formed when vicinal dihalides are heated with zinc dust in ethyl alcohol

1-2,dichloro ethane +Zn in presence of heat and alcohol ------->alkene and Zncl2