Ethene plus bromine water yields which product?

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Multiple Choice

Ethene plus bromine water yields which product?

Explanation:
Alkenes react by adding halogen across the carbon–carbon double bond. Bromine is an electrophile, so the π bond opens and a bromine atom attaches to each carbon, giving a vicinal dibromide. For ethene this forms 1,2-dibromoethane (C2H4Br2). The bromine water decolorizes as Br2 is consumed in the reaction, which is why this test is used to detect unsaturation. So the product is 1,2-dibromoethane.

Alkenes react by adding halogen across the carbon–carbon double bond. Bromine is an electrophile, so the π bond opens and a bromine atom attaches to each carbon, giving a vicinal dibromide. For ethene this forms 1,2-dibromoethane (C2H4Br2). The bromine water decolorizes as Br2 is consumed in the reaction, which is why this test is used to detect unsaturation. So the product is 1,2-dibromoethane.

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