Question detail
Explain how transition metals can act as catalysts in chemical reactions.
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At a glance
Question
Type
exam_style
Style
Topic
Transition metals (A-level only)
Question
Explain how transition metals can act as catalysts in chemical reactions.
Answer
Transition metals can provide an alternative reaction pathway with lower activation energy, allowing reactions to occur more quickly. Their ability to change oxidation states facilitates the formation and breaking of bonds during the reaction.
Explanation
This answer demonstrates an understanding of the catalytic activity of transition metals, specifically how their unique properties enable them to lower activation energy and facilitate reactions. It tests the student's knowledge of transition metal characteristics and their role in catalysis.
Common mistake
Misunderstanding Catalytic Activity
Students often confuse the role of transition metals as catalysts with their ability to change oxidation states, thinking that all transition metals can catalyze reactions equally.
To clarify, remember that transition metals act as catalysts due to their ability to provide a surface for reactions and their variable oxidation states. For example, iron (Fe) can catalyze the Haber process by forming different oxidation states that facilitate the reaction between nitrogen and hydrogen. This means that while many transition metals can act as catalysts, their effectiveness can vary based on the specific reaction conditions and the metal's properties.
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