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← ScienceWhich outcome arises when palladium catalyzes ethene hydrogenation?
A)Decreased activation energy lowers reaction rate✓
B)Increased energy input halts the reaction
C)Homogeneous catalysis causes steric hindrance
D)Product selectivity favors smaller alkanes
💡 Explanation
Catalysis occurs when the palladium catalyst lowers the reaction's activation energy via surface adsorption of reactants; because of this lowered barrier, the reaction's rate increases. Therefore hydrogenation accelerates, rather than diminishes, without favoring smaller alkanes.
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