Catalytic hydrogenation of cyclohexene with H2/Pt gives what product?

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Multiple Choice

Catalytic hydrogenation of cyclohexene with H2/Pt gives what product?

Hydrogenation of an alkene with hydrogen and a metal catalyst adds hydrogen atoms across the carbon–carbon double bond, turning the double bond into a single bond and giving a saturated product. For cyclohexene, the ring has one C=C; adding H2 across that bond with a Pt catalyst converts it to a fully saturated ring, cyclohexane. The other options would require different chemistry: benzene would need dehydrogenation/aromatization, cyclohexanol would need an OH to be added (hydration/oxidation), and cyclohexene would persist only if no hydrogenation occurred. The oxidative-saturation path here yields cyclohexane.

Hydrogenation of an alkene with hydrogen and a metal catalyst adds hydrogen atoms across the carbon–carbon double bond, turning the double bond into a single bond and giving a saturated product. For cyclohexene, the ring has one C=C; adding H2 across that bond with a Pt catalyst converts it to a fully saturated ring, cyclohexane. The other options would require different chemistry: benzene would need dehydrogenation/aromatization, cyclohexanol would need an OH to be added (hydration/oxidation), and cyclohexene would persist only if no hydrogenation occurred. The oxidative-saturation path here yields cyclohexane.

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