Question:
Which of the following is not true about a catalyst?
Which of the following is not true about a catalyst?
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Catalyst changes pathway, so reaction order can change.
Updated On: May 1, 2026
- Mechanism of the reaction in presence and absence of catalyst could be different
- Enthalpy of the reaction does not change with catalysts
- Catalyst enhances both forward and backward reaction at equal rate
- Catalyst participates in the reaction, but not consumed in the process
- Use of catalyst cannot change the order of the reaction
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The Correct Option is
Solution and Explanation
Concept:
Catalyst properties:
• Lowers activation energy
• Does not change $\Delta H$
• May change mechanism
Step 1: Check statement (E).
Catalyst can change mechanism → may change order.
Step 2: Conclusion.
Statement (E) is incorrect.
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