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← ScienceWhich effect occurs when platinum acts during catalysis?
A)Reduced activation energy lowers reaction rate✓
B)Increased reactant concentration decreases outcome
C)Equilibrium shifts to inhibit catalysis
D)Platinum oxidizes, accelerating substrate reduction
💡 Explanation
The catalytic mechanism lowers the reaction's needed activation energy since it provides an alternative reaction pathway. Thus, the reaction rate increases because the platinum facilitates the bond breaking steps rather than directly oxidizing.
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