C₂H₄ (g) + 6 Cl₂ (g) → 2 CCl₄ (l) + 4 HCl (g)

This is an oxidation-reduction (redox) reaction:

C₂H₄ is a reducing agent, Cl₂ is an oxidizing agent.

Reactants:

• C₂H₄ – Ethene
  • Other names: Ethylene , CH2=CH2 , H2C=CH2 , R-1150
  • Appearance: Colorless gas ; Colourless compressed gas with characteristic odour
• Cl₂
  • Names: Chlorine , Molecular chlorine
  • Appearance: Greenish-yellow compressed liquefied gas with pungent odour ; Greenish-yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]

Products:

• CCl₄ – Carbon tetrachloride, Tetrachloromethane
  • Other names: Carbon tetrachloride , Benziform , Benzinoform ... show moreCarbon chloride , Carbon tet. , Freon-10 , Refrigerant-10 , Halon-104 , Methane tetrachloride , Methyl tetrachloride , Perchloromethane , Tetraform , Tetrasol , Tetrachloromethane , Carbon tet , Freon 10 , Halon 104 , Tetrachloridocarbon , CCl4 , Tetra , F10 , Univerm , Thawpit , Tetrachloromethane, 9CI , Tetrachloro-Methane , Vermoestricid , Refrigerant R10 , R10 , Carbon chloride? , Necatorine , HSDB 53 , Carbontetrachloride , Halon 1040 , Tetrachlorocarbon , Freon® 10 , Halon® 104 show less
  • Appearance: Colourless liquid ; Colourless liquid with characteristic odour ; Colorless liquid with a characteristic ether-like odor.
• HCl – Chlorane , Hydrogen chloride
  • Other names: Hydrochloric acid , M , Uriatic acid ... show moreHydronium chloride , Chlorhydric Acid , Hydrochloric acid gas , HCl , Anhydrous hydrogen chloride , Hydrochloric acid, anhydrous , Aqueous hydrogen chloride , [Note: Often used in an aqueous solution.] show less
  • Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]