Question

How HBr react with propene?

Answer 1

As with all alkenes, unsymmetrical alkenes like propene react with hydrogen bromide in the cold. The double bond breaks and a hydrogen atom ends up attached to one of the carbons and a bromine atom to the other. In the case of propene, 2-bromopropane is formed. The product is 2-bromopropane.

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Answer 2

Answer:

Propane reacts with HBr in the presence of light and di-test butyl peroxide by a radical mechanism.

Explanation:

Two products, 1 bromopropane and 2-bromopropane, form in a ratio of 9:1; favoring 1 bromopropane a) Initiation occurs by a two step process and involves the generation of a bromine free radical.