Which product results from the hydrogenation of cyclohexene?

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Multiple Choice

Which product results from the hydrogenation of cyclohexene?

Hydrogenation adds hydrogen across a carbon–carbon double bond, turning an alkene into a saturated alkane. In cyclohexene, the C=C bond is what holds the unsaturation. Adding H2 with a metal catalyst breaks that double bond and attaches one hydrogen to each carbon, giving cyclohexane (C6H12). This is the product because hydrogenation removes the double bond and fully saturates the ring. Adding an OH group to make cyclohexanol would require hydration or oxidation, not hydrogenation, and forming benzene would need removing hydrogens to create or maintain aromatic stabilization, which isn’t what hydrogenation does.

Hydrogenation adds hydrogen across a carbon–carbon double bond, turning an alkene into a saturated alkane. In cyclohexene, the C=C bond is what holds the unsaturation. Adding H2 with a metal catalyst breaks that double bond and attaches one hydrogen to each carbon, giving cyclohexane (C6H12). This is the product because hydrogenation removes the double bond and fully saturates the ring. Adding an OH group to make cyclohexanol would require hydration or oxidation, not hydrogenation, and forming benzene would need removing hydrogens to create or maintain aromatic stabilization, which isn’t what hydrogenation does.

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