how will you distinguish between ethyl chloride and vinyl chloride?

Ethyl chloride and vinyl chloride will be distinguished by bromine water . Vinyl chloride will react with bromine water and it will become decolorised. Ethyl chloride will not decolourise bromine water .
CH₂=CHCl + Br₂ $\stackrel{{\text{CCl}}_4}{\to }$ CH₂Br - CHClBr
CH₃CH₂Cl + Br₂ → No reaction