The reaction of bromine with an alkene such as cyclopentene is a good laboratory test for the presence of a double bond in a compound. What type of reaction is it?

Question

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This reaction involves the addition of bromine across the double bond of the alkene, resulting in the formation of a dibromoalkane. This is a characteristic reaction of alkenes and is used as a test for the presence of a double bond.

The Reaction of Bromine with an Alkene Such as Cyclopentene