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← ScienceWhich outcome occurs when a platinum catalyst contacts hydrogen peroxide?
A)Decomposition yielding water and oxygen✓
B)Hydrogen peroxide becomes more stable
C)Reduced activation energy for oxidation
D)Platinum catalyst becomes permanently deactivated
💡 Explanation
The catalytic decomposition of hydrogen peroxide occurs because the platinum catalyst offers an alternate reaction pathway with lower activation energy, therefore H₂O₂ rapidly decomposes to water and oxygen rather than remaining as hydrogen peroxide.
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