Question detail
Which of the following best explains the catalytic activity of transition metals?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Transition metals (A-level only)
Question
- A. They have a complete d subshell.
- B. They can form complex ions with ligands.
- C. They have high electronegativity.
- D. They are always found in nature.
Answer
They can form complex ions with ligands.
Explanation
Transition metals can form complex ions with ligands, which allows them to stabilize different oxidation states and participate in catalytic processes.
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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