Final answer:
Hydrohalogenation reactions typically produce alkyl halides and can lead to two possible products: ethyl halide or vinyl halide, depending on Markovnikov's rule.
Step-by-step explanation:
In hydrohalogenation reactions, an alkene reacts with a hydrogen halide (HX) to form different types of alkyl halides, depending on the conditions of the reaction and the structure of the alkene. If we consider the example of the hydrohalogenation reaction where ethene is the reactant, the addition of HX to ethene can lead to two possible products: ethyl halide if the addition is according to Markovnikov's rule, or vinyl halide if the addition goes against the Markovnikov's rule.
Generally, the Markovnikov's rule predicts that the hydrogen atom from the hydrogen halide will attach to the carbon with the greatest number of hydrogen atoms already present, and the halogen will attach to the carbon with fewer hydrogen atoms, giving the more substituted alkyl halide as the major product.