3
Example 6 3
Solution
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Solution
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(II) From alkenes
(i) Addition of hydrogen halides: An alkene is converted to
corresponding alkyl halide by reaction with hydrogen chloride,
hydrogen bromide or hydrogen iodide Propene yields two products, however only one predominates as
per Markovnikov’s rule (Unit 13, Class XI)
(ii) Addition of halogens: In the laboratory, addition of bromine in
CCl4 to an alkene resulting in discharge of reddish brown colour
of bromine constitutes an important method for the detection of
double bond in a molecule