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This is an oxidation-reduction (redox) reaction:
2 Br + 2 e - → 2 Br -I (reduction)
2 C -II - 2 e - → 2 C -I (oxidation)
Br 2 is an oxidizing agent, C 2 H 4 is a reducing agent.
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Reactants:
C 2 H 4 – Ethene Other names: Ethylene , CH2=CH2 , H2C=CH2 , R-1150 Appearance: Colorless gas ; Colourless compressed gas with characteristic odour Br 2 Names: Bromine , Molecular bromine Appearance: Fuming red-to-brown liquid with pungent odour ; Dark reddish-brown, fuming liquid with suffocating, irritating fumes. Products:
C 2 H 4 Br 2 Names: 1,2-dibromoethane , Ethylene dibromide , Ethylene bromide Appearance: Colourless liquid with characteristic odour. turns brown on exposure to light ; Colorless liquid or solid (below 50°F) with a sweet odor. [fumigant]
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