When excess of HCl is added to acetylene, the product is?

Vinyl chloride

Ethyl chloride

1, 2 – dichloroethane

1, 1 – dichloroethane

Explanation

Acetylene reacts with one molecule of HCl to form vinyl chloride.

However, when excess HCl is added, the second molecule of HCl also reacts with the vinyl chloride, attaching both chlorine atoms to the same carbon atom, resulting in 1,1-dichloroethane.