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NEETChemistryd and f Block Elements

What is the role of transition metal ions in catalysis?

Options

  1. AThey decrease the concentration of reactants
  2. BThey increase the activation energy
  3. CThey become less effective as catalysts
  4. DThey can change their oxidation states and become more effective as catalysts

Correct answer

D. They can change their oxidation states and become more effective as catalysts

Step-by-step solution

Because the transition metal ions can change their oxidation states, they become more effective as catalysts."

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