Final answer:
The product of the hydrogenation of 2-butene using a platinum catalyst is butane with the condensed structural formula CH3CH2CH2CH3, as the double bond is turned into a single bond while two hydrogen atoms are added.
Step-by-step explanation:
The condensed structural formula for the hydrogenation product of 2-butene using a platinum catalyst is CH3CH2CH2CH3. The hydrogenation reaction involves adding hydrogen across the double bond of 2-butene, turning it into butane, which is an alkane with single bonds only. If we start with 2-butene (CH3CH=CHCH3), the double bond between the second and third carbon atoms is reduced to a single bond, and each of the two carbons previously involved in the double bond gains an additional hydrogen atom, thus yielding the saturated hydrocarbon, butane.