Final answer:
The major organic product of the reaction is H₃C-CH₂-CH₂-C(CH₃)−CH₂OH, a secondary alcohol formed by acid-catalyzed hydration of an alkene following Markovnikov's rule.
Step-by-step explanation:
The major organic product of the reaction of H₃C-CH₂-CH₂-C(CH₃)=CH₂ in the presence of H₂O, H₂SO₄ would be H₃C-CH₂-CH₂-C(CH₃)−CH₂OH (option a). This is because the reaction is an example of acid-catalyzed hydration of an alkene, where water adds across the double bond in the presence of a strong acid such as sulfuric acid, resulting in the formation of an alcohol. The hydration prefers to occur according to Markovnikov's rule, which in this case, places the hydroxyl group (OH) on the more substituted carbon of the alkene, yielding the secondary alcohol.